add close() method to Ghostscript
This commit is contained in:
parent
466cad318a
commit
3a79e6a87f
8 changed files with 166 additions and 114 deletions
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@ -1,5 +1,5 @@
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group = org.xbib.graphics
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group = org.xbib.graphics
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name = graphics
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name = graphics
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version = 4.3.2
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version = 4.3.3
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org.gradle.warning.mode = ALL
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org.gradle.warning.mode = ALL
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@ -23,9 +23,9 @@ public class FontAnalyzer {
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"-sFile=" + path.toAbsolutePath(),
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"-sFile=" + path.toAbsolutePath(),
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"-sOutputFile=%stdout",
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"-sOutputFile=%stdout",
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"-f", "-"};
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"-f", "-"};
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Ghostscript gs = Ghostscript.getInstance();
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try (InputStream is = this.getClass().getClassLoader().getResourceAsStream("script/AnalyzePDFFonts.ps");
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try (InputStream is = this.getClass().getClassLoader().getResourceAsStream("script/AnalyzePDFFonts.ps");
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ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
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ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
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Ghostscript gs = Ghostscript.getInstance();
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gs.setStdIn(is);
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gs.setStdIn(is);
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gs.setStdOut(baos);
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gs.setStdOut(baos);
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gs.run(gsArgs);
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gs.run(gsArgs);
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@ -56,6 +56,8 @@ public class FontAnalyzer {
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}
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}
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}
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}
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return result;
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return result;
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} finally {
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gs.close();
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}
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}
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}
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}
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}
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}
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@ -31,32 +31,24 @@ public class Ghostscript {
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private static Ghostscript INSTANCE;
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private static Ghostscript INSTANCE;
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private static InputStream stdIn;
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private InputStream stdIn;
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private static OutputStream stdOut;
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private OutputStream stdOut;
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private static OutputStream stdErr;
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private OutputStream stdErr;
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static {
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private GhostscriptLibrary libraryInstance;
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try {
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prepareTmp();
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private Ghostscript(GhostscriptLibrary libraryInstance) {
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INSTANCE = new Ghostscript();
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this.libraryInstance = libraryInstance;
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stdOut = new LoggingOutputStream(logger);
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this.stdOut = new LoggingOutputStream(logger);
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stdErr = new LoggingOutputStream(logger);
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this.stdErr = new LoggingOutputStream(logger);
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INSTANCE.setStdOut(stdOut);
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}
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INSTANCE.setStdErr(stdErr);
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} catch (Exception e) {
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public synchronized static Ghostscript getInstance() {
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logger.log(Level.SEVERE, e.getMessage(), e);
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if (INSTANCE == null) {
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INSTANCE = createInstance();
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}
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}
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}
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private final GhostscriptLibrary libraryInstance;
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private Ghostscript() {
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libraryInstance = GhostscriptLibraryLoader.loadLibrary();
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}
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public static Ghostscript getInstance() {
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return INSTANCE;
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return INSTANCE;
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}
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}
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@ -65,7 +57,7 @@ public class Ghostscript {
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*
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*
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* @return the Ghostscript revision data.
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* @return the Ghostscript revision data.
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*/
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*/
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public static GhostscriptRevision getRevision() {
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public synchronized static GhostscriptRevision getRevision() {
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GhostscriptLibrary.gsapi_revision_s revision = new GhostscriptLibrary.gsapi_revision_s();
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GhostscriptLibrary.gsapi_revision_s revision = new GhostscriptLibrary.gsapi_revision_s();
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INSTANCE.libraryInstance.gsapi_revision(revision, revision.size());
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INSTANCE.libraryInstance.gsapi_revision(revision, revision.size());
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GhostscriptRevision result = new GhostscriptRevision();
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GhostscriptRevision result = new GhostscriptRevision();
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@ -83,7 +75,7 @@ public class Ghostscript {
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*
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*
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* @return The OutputStream or null
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* @return The OutputStream or null
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*/
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*/
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public synchronized OutputStream getStdErr() {
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public OutputStream getStdErr() {
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return stdErr;
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return stdErr;
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}
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}
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@ -92,7 +84,7 @@ public class Ghostscript {
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*
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*
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* @param outputStream OutputStream object
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* @param outputStream OutputStream object
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*/
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*/
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public synchronized void setStdErr(OutputStream outputStream) {
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public void setStdErr(OutputStream outputStream) {
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stdErr = outputStream;
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stdErr = outputStream;
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}
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}
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@ -101,7 +93,7 @@ public class Ghostscript {
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*
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*
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* @return The OutputStream or null
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* @return The OutputStream or null
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*/
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*/
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public synchronized OutputStream getStdOut() {
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public OutputStream getStdOut() {
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return stdOut;
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return stdOut;
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}
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}
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@ -110,7 +102,7 @@ public class Ghostscript {
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*
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*
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* @param outputStream OutputStream object
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* @param outputStream OutputStream object
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*/
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*/
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public synchronized void setStdOut(OutputStream outputStream) {
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public void setStdOut(OutputStream outputStream) {
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stdOut = outputStream;
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stdOut = outputStream;
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}
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}
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@ -119,7 +111,7 @@ public class Ghostscript {
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*
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*
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* @return The InputStream or null
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* @return The InputStream or null
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*/
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*/
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public synchronized InputStream getStdIn() {
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public InputStream getStdIn() {
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return stdIn;
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return stdIn;
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}
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}
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@ -128,7 +120,7 @@ public class Ghostscript {
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*
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*
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* @param inputStream InputStream object
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* @param inputStream InputStream object
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*/
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*/
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public synchronized void setStdIn(InputStream inputStream) {
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public void setStdIn(InputStream inputStream) {
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stdIn = inputStream;
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stdIn = inputStream;
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}
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}
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@ -265,6 +257,35 @@ public class Ghostscript {
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}
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}
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}
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}
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public synchronized void close() throws IOException {
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if (stdIn != null) {
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stdIn.close();
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stdIn = null;
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}
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if (stdOut != null) {
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stdOut.close();
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stdOut = null;
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}
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if (stdErr != null) {
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stdErr.close();
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stdErr = null;
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}
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libraryInstance = null;
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INSTANCE = null;
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System.gc();
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logger.log(Level.INFO, "ghostscript instance closed and gc'ed()");
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}
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private static Ghostscript createInstance() {
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try {
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prepareTmp();
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return new Ghostscript(GhostscriptLibraryLoader.loadLibrary());
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} catch (Exception e) {
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logger.log(Level.SEVERE, e.getMessage(), e);
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}
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return null;
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}
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private static void prepareTmp() throws IOException {
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private static void prepareTmp() throws IOException {
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String tmp = System.getenv("TMPDIR"); // the variable that ghostscript uses
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String tmp = System.getenv("TMPDIR"); // the variable that ghostscript uses
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if (tmp == null) {
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if (tmp == null) {
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@ -106,73 +106,77 @@ public class PDFConverter {
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if (outputStream == null) {
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if (outputStream == null) {
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return;
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return;
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}
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}
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prepare(tmpPath);
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Path output = Files.createTempFile(tmpPath, "pdf", "pdf");
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Ghostscript gs = Ghostscript.getInstance();
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Ghostscript gs = Ghostscript.getInstance();
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List<String> gsArgs = new LinkedList<>();
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gsArgs.add("-ps2pdf");
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gsArgs.add("-dNOPAUSE");
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//gsArgs.add("-dQUIET");
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gsArgs.add("-dBATCH");
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gsArgs.add("-dSAFER");
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switch (autoRotatePages) {
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case OPTION_AUTOROTATEPAGES_NONE:
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gsArgs.add("-dAutoRotatePages=/None");
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break;
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case OPTION_AUTOROTATEPAGES_ALL:
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gsArgs.add("-dAutoRotatePages=/All");
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break;
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case OPTION_AUTOROTATEPAGES_PAGEBYPAGE:
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gsArgs.add("-dAutoRotatePages=/PageByPage");
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break;
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default:
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break;
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}
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switch (processColorModel) {
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case OPTION_PROCESSCOLORMODEL_CMYK:
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gsArgs.add("-dProcessColorModel=/DeviceCMYK");
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break;
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case OPTION_PROCESSCOLORMODEL_GRAY:
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gsArgs.add("-dProcessColorModel=/DeviceGray");
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break;
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default:
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gsArgs.add("-dProcessColorModel=/DeviceRGB");
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break;
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}
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switch (pdfsettings) {
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case OPTION_PDFSETTINGS_EBOOK:
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gsArgs.add("-dPDFSETTINGS=/ebook");
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break;
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case OPTION_PDFSETTINGS_SCREEN:
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gsArgs.add("-dPDFSETTINGS=/screen");
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break;
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case OPTION_PDFSETTINGS_PRINTER:
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gsArgs.add("-dPDFSETTINGS=/printer");
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break;
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case OPTION_PDFSETTINGS_PREPRESS:
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gsArgs.add("-dPDFSETTINGS=/prepress");
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break;
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default:
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gsArgs.add("-dPDFSETTINGS=/default");
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break;
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}
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gsArgs.add("-dCompatibilityLevel=" + compatibilityLevel);
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gsArgs.add("-dPDFX=" + pdfx);
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gsArgs.add("-dDEVICEWIDTHPOINTS=" + paperSize.getWidth());
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gsArgs.add("-dDEVICEHEIGHTPOINTS=" + paperSize.getHeight());
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gsArgs.add("-sDEVICE=pdfwrite");
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gsArgs.add("-sOutputFile=" + output.toAbsolutePath().toString());
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//gsArgs.add("-q");
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gsArgs.add("-f");
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gsArgs.add("-");
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try {
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try {
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gs.setStdIn(inputStream);
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prepare(tmpPath);
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gs.setStdOut(new LoggingOutputStream(logger));
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Path output = Files.createTempFile(tmpPath, "pdf", "pdf");
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gs.setStdErr(new LoggingOutputStream(logger));
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List<String> gsArgs = new LinkedList<>();
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gs.run(gsArgs.toArray(new String[gsArgs.size()]));
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gsArgs.add("-ps2pdf");
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Files.copy(output.toAbsolutePath(), outputStream);
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gsArgs.add("-dNOPAUSE");
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//gsArgs.add("-dQUIET");
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gsArgs.add("-dBATCH");
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gsArgs.add("-dSAFER");
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switch (autoRotatePages) {
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case OPTION_AUTOROTATEPAGES_NONE:
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gsArgs.add("-dAutoRotatePages=/None");
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break;
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case OPTION_AUTOROTATEPAGES_ALL:
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gsArgs.add("-dAutoRotatePages=/All");
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break;
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case OPTION_AUTOROTATEPAGES_PAGEBYPAGE:
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gsArgs.add("-dAutoRotatePages=/PageByPage");
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break;
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default:
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break;
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}
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switch (processColorModel) {
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case OPTION_PROCESSCOLORMODEL_CMYK:
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gsArgs.add("-dProcessColorModel=/DeviceCMYK");
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break;
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case OPTION_PROCESSCOLORMODEL_GRAY:
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gsArgs.add("-dProcessColorModel=/DeviceGray");
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break;
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default:
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gsArgs.add("-dProcessColorModel=/DeviceRGB");
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break;
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}
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switch (pdfsettings) {
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case OPTION_PDFSETTINGS_EBOOK:
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gsArgs.add("-dPDFSETTINGS=/ebook");
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break;
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case OPTION_PDFSETTINGS_SCREEN:
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gsArgs.add("-dPDFSETTINGS=/screen");
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break;
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case OPTION_PDFSETTINGS_PRINTER:
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gsArgs.add("-dPDFSETTINGS=/printer");
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break;
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case OPTION_PDFSETTINGS_PREPRESS:
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gsArgs.add("-dPDFSETTINGS=/prepress");
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break;
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default:
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gsArgs.add("-dPDFSETTINGS=/default");
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break;
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}
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gsArgs.add("-dCompatibilityLevel=" + compatibilityLevel);
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gsArgs.add("-dPDFX=" + pdfx);
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gsArgs.add("-dDEVICEWIDTHPOINTS=" + paperSize.getWidth());
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gsArgs.add("-dDEVICEHEIGHTPOINTS=" + paperSize.getHeight());
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gsArgs.add("-sDEVICE=pdfwrite");
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gsArgs.add("-sOutputFile=" + output.toAbsolutePath().toString());
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//gsArgs.add("-q");
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gsArgs.add("-f");
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gsArgs.add("-");
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try {
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gs.setStdIn(inputStream);
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gs.setStdOut(new LoggingOutputStream(logger));
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gs.setStdErr(new LoggingOutputStream(logger));
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gs.run(gsArgs.toArray(new String[gsArgs.size()]));
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Files.copy(output.toAbsolutePath(), outputStream);
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} finally {
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delete(tmpPath);
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}
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} finally {
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} finally {
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delete(tmpPath);
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gs.close();
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}
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}
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}
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}
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@ -143,11 +143,15 @@ public class PDFRasterizer {
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logger.info("pdfToImage args=" + gsArgs);
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logger.info("pdfToImage args=" + gsArgs);
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// reset stdin
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// reset stdin
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Ghostscript gs = Ghostscript.getInstance();
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Ghostscript gs = Ghostscript.getInstance();
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gs.setStdIn(null);
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try {
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gs.setStdOut(new LoggingOutputStream(logger));
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gs.setStdIn(null);
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gs.setStdErr(new LoggingOutputStream(logger));
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gs.setStdOut(new LoggingOutputStream(logger));
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gs.run(gsArgs.toArray(new String[gsArgs.size()]));
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gs.setStdErr(new LoggingOutputStream(logger));
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logger.info("pdfToImage done");
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gs.run(gsArgs.toArray(new String[gsArgs.size()]));
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logger.info("pdfToImage done");
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} finally {
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gs.close();
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}
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}
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}
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public synchronized void pdfToImage(Path sourceFile,
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public synchronized void pdfToImage(Path sourceFile,
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@ -179,12 +183,16 @@ public class PDFRasterizer {
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gsArgs.add(sourceFile.toString());
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gsArgs.add(sourceFile.toString());
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logger.info("pdfToImage args=" + gsArgs);
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logger.info("pdfToImage args=" + gsArgs);
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Ghostscript gs = Ghostscript.getInstance();
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Ghostscript gs = Ghostscript.getInstance();
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// reset stdin
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try {
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gs.setStdIn(null);
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// reset stdin
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gs.setStdOut(new LoggingOutputStream(logger));
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gs.setStdIn(null);
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gs.setStdErr(new LoggingOutputStream(logger));
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gs.setStdOut(new LoggingOutputStream(logger));
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gs.run(gsArgs.toArray(new String[gsArgs.size()]));
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gs.setStdErr(new LoggingOutputStream(logger));
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logger.info("pdfToImage done");
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gs.run(gsArgs.toArray(new String[gsArgs.size()]));
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logger.info("pdfToImage done");
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} finally {
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gs.close();
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}
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}
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}
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public int mergeImagesToPDF(Path sourceDir, Path targetFile) throws IOException {
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public int mergeImagesToPDF(Path sourceDir, Path targetFile) throws IOException {
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@ -287,10 +295,14 @@ public class PDFRasterizer {
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gsArgs.add("-sOutputFile=" + targetFile.toString());
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gsArgs.add("-sOutputFile=" + targetFile.toString());
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gsArgs.add(sourceFile.toString());
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gsArgs.add(sourceFile.toString());
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Ghostscript gs = Ghostscript.getInstance();
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Ghostscript gs = Ghostscript.getInstance();
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gs.setStdIn(null);
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try {
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logger.info(gsArgs.toString());
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gs.setStdIn(null);
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gs.run(gsArgs.toArray(new String[gsArgs.size()]));
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logger.info(gsArgs.toString());
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logger.info("scalePDF: source = " + sourceFile + " target = " + targetFile + " done");
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gs.run(gsArgs.toArray(new String[gsArgs.size()]));
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logger.info("scalePDF: source = " + sourceFile + " target = " + targetFile + " done");
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} finally {
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gs.close();
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}
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}
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}
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public void toPDFA(Path source, Path target) throws IOException {
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public void toPDFA(Path source, Path target) throws IOException {
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@ -326,14 +338,15 @@ public class PDFRasterizer {
|
||||||
gsArgs.add("-sOutputFile=" + target.toString());
|
gsArgs.add("-sOutputFile=" + target.toString());
|
||||||
gsArgs.add(pdfapsPath.toAbsolutePath().toString());
|
gsArgs.add(pdfapsPath.toAbsolutePath().toString());
|
||||||
gsArgs.add(source.toString());
|
gsArgs.add(source.toString());
|
||||||
|
Ghostscript gs = Ghostscript.getInstance();
|
||||||
try {
|
try {
|
||||||
Ghostscript gs = Ghostscript.getInstance();
|
|
||||||
gs.setStdIn(null);
|
gs.setStdIn(null);
|
||||||
gs.run(gsArgs.toArray(new String[gsArgs.size()]));
|
gs.run(gsArgs.toArray(new String[gsArgs.size()]));
|
||||||
} finally {
|
} finally {
|
||||||
delete(pdfapsPathTmp);
|
delete(pdfapsPathTmp);
|
||||||
delete(pdfapsPath);
|
delete(pdfapsPath);
|
||||||
delete(iccPath);
|
delete(iccPath);
|
||||||
|
gs.close();
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
@ -1,4 +1,4 @@
|
||||||
package org.xbib.graphics.ghostscript;
|
package org.xbib.graphics.ghostscript.test;
|
||||||
|
|
||||||
import com.sun.jna.ptr.IntByReference;
|
import com.sun.jna.ptr.IntByReference;
|
||||||
import org.xbib.graphics.ghostscript.internal.GhostscriptLibrary;
|
import org.xbib.graphics.ghostscript.internal.GhostscriptLibrary;
|
|
@ -3,7 +3,6 @@ package org.xbib.graphics.ghostscript.test;
|
||||||
import org.junit.jupiter.api.BeforeAll;
|
import org.junit.jupiter.api.BeforeAll;
|
||||||
import org.junit.jupiter.api.Disabled;
|
import org.junit.jupiter.api.Disabled;
|
||||||
import org.junit.jupiter.api.Test;
|
import org.junit.jupiter.api.Test;
|
||||||
import org.xbib.graphics.ghostscript.GhostScriptLibraryTester;
|
|
||||||
|
|
||||||
import java.io.File;
|
import java.io.File;
|
||||||
import java.util.logging.Logger;
|
import java.util.logging.Logger;
|
||||||
|
|
|
@ -1,5 +1,8 @@
|
||||||
package org.xbib.graphics.ghostscript.test;
|
package org.xbib.graphics.ghostscript.test;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import org.junit.jupiter.api.AfterAll;
|
||||||
|
import org.junit.jupiter.api.BeforeAll;
|
||||||
import org.junit.jupiter.api.Disabled;
|
import org.junit.jupiter.api.Disabled;
|
||||||
import org.junit.jupiter.api.Test;
|
import org.junit.jupiter.api.Test;
|
||||||
import org.xbib.graphics.ghostscript.Ghostscript;
|
import org.xbib.graphics.ghostscript.Ghostscript;
|
||||||
|
@ -20,7 +23,17 @@ public class GhostscriptTest {
|
||||||
|
|
||||||
private static final String dir = "src/test/resources/org/xbib/graphics/ghostscript/test/";
|
private static final String dir = "src/test/resources/org/xbib/graphics/ghostscript/test/";
|
||||||
|
|
||||||
private static final Ghostscript gs = Ghostscript.getInstance();
|
static Ghostscript gs;
|
||||||
|
|
||||||
|
@BeforeAll
|
||||||
|
public static void init() {
|
||||||
|
gs = Ghostscript.getInstance();
|
||||||
|
}
|
||||||
|
|
||||||
|
@AfterAll
|
||||||
|
public static void shutdown() throws IOException {
|
||||||
|
gs.close();
|
||||||
|
}
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
public void testGetRevision() {
|
public void testGetRevision() {
|
||||||
|
|
Loading…
Reference in a new issue