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@ -123,8 +123,8 @@ public class Ghostscript implements AutoCloseable {
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stdIn = inputStream;
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}
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public synchronized void run(String[] args) throws IOException {
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run(args, null, null);
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public synchronized int run(String[] args) throws IOException {
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return run(args, null, null);
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}
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/**
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@ -133,20 +133,24 @@ public class Ghostscript implements AutoCloseable {
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* @param args Interpreter parameters. Use the same as Ghostscript command line arguments.
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* @param runString run a string for the Ghostscript interpreter.
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* @param fileName run a postscript file for the Ghostscript interpreter.
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* @return the ghostscript return code;
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* @throws IOException if initialize fails
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*/
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public synchronized void run(String[] args,
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String runString,
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String fileName) throws IOException {
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public synchronized int run(String[] args,
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String runString,
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String fileName) throws IOException {
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GhostscriptLibrary.gs_main_instance.ByReference nativeInstanceByRef = null;
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int ret = 0;
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boolean quit = false;
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try {
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nativeInstanceByRef = new GhostscriptLibrary.gs_main_instance.ByReference();
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int result = libraryInstance.gsapi_new_instance(nativeInstanceByRef.getPointer(), null);
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if (result != 0) {
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ret = libraryInstance.gsapi_new_instance(nativeInstanceByRef.getPointer(), null);
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if (ret != 0) {
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nativeInstanceByRef = null;
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throw new IOException("can not call Ghostscript gsapi_new_instance, error code " + result);
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throw new IOException("can not call Ghostscript gsapi_new_instance, error code = " + ret);
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}
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logger.log(Level.INFO, "ghostscript instance " + nativeInstanceByRef + " created");
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Pointer pointer = nativeInstanceByRef.getValue();
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GhostscriptLibrary.stdin_fn stdinCallback = null;
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if (getStdIn() != null) {
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stdinCallback = (caller_handle, buf, len) -> {
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@ -189,22 +193,21 @@ public class Ghostscript implements AutoCloseable {
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return len;
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};
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logger.log(Level.FINE, "setting gsapi_set_stdio");
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result = libraryInstance.gsapi_set_stdio(nativeInstanceByRef.getValue(), stdinCallback,
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stdoutCallback, stderrCallback);
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if (result != 0) {
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throw new IOException("can not set stdio on Ghostscript interpreter, error code " + result);
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ret = libraryInstance.gsapi_set_stdio(pointer, stdinCallback, stdoutCallback, stderrCallback);
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if (ret != 0) {
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throw new IOException("can not set stdio on Ghostscript interpreter, error code " + ret);
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}
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logger.log(Level.FINE, "gsapi_init_with_args = " + (args != null ? Arrays.asList(args) : "null"));
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result = libraryInstance.gsapi_init_with_args(nativeInstanceByRef.getValue(),
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args != null ? args.length : 0, args);
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logger.log(Level.FINE, "gsapi_init_with_args result = " + result);
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if (result == ErrorCodes.gs_error_Quit) {
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result = 0;
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ret = libraryInstance.gsapi_init_with_args(pointer, args != null ? args.length : 0, args);
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logger.log(Level.FINE, "gsapi_init_with_args return code = " + ret);
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if (ret == ErrorCodes.gs_error_Quit) {
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quit = true;
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ret = 0;
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}
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if (result == 0) {
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if (ret == 0) {
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if (runString != null) {
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IntByReference exitCode = new IntByReference();
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libraryInstance.gsapi_run_string_begin(nativeInstanceByRef.getValue(), 0, exitCode);
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ret = libraryInstance.gsapi_run_string_begin(pointer, 0, exitCode);
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if (exitCode.getValue() != 0) {
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throw new IOException("can not run command on Ghostscript interpreter. gsapi_run_string_begin failed with error code "
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+ exitCode.getValue());
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@ -212,14 +215,13 @@ public class Ghostscript implements AutoCloseable {
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String[] slices = runString.split("\n");
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for (String slice1 : slices) {
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String slice = slice1 + "\n";
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libraryInstance.gsapi_run_string_continue(nativeInstanceByRef.getValue(), slice, slice.length(),
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0, exitCode);
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libraryInstance.gsapi_run_string_continue(pointer, slice, slice.length(), 0, exitCode);
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if (exitCode.getValue() != 0) {
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throw new IOException("can not run command on Ghostscript interpreter. gsapi_run_string_continue failed with error code "
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+ exitCode.getValue());
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}
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}
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libraryInstance.gsapi_run_string_end(nativeInstanceByRef.getValue(), 0, exitCode);
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ret = libraryInstance.gsapi_run_string_end(pointer, 0, exitCode);
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if (exitCode.getValue() != 0) {
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throw new IOException("can not run command on Ghostscript interpreter. gsapi_run_string_end failed with error code "
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+ exitCode.getValue());
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@ -228,32 +230,36 @@ public class Ghostscript implements AutoCloseable {
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}
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if (fileName != null) {
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IntByReference exitCode = new IntByReference();
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libraryInstance.gsapi_run_file(nativeInstanceByRef.getValue(), fileName, 0, exitCode);
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ret = libraryInstance.gsapi_run_file(pointer, fileName, 0, exitCode);
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if (exitCode.getValue() != 0) {
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throw new IOException("can not run file on Ghostscript interpreter, error code " + exitCode.getValue());
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throw new IOException("can not run file on Ghostscript interpreter, error code = " + exitCode.getValue());
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}
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logger.log(Level.FINE, "file completed: " + fileName);
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}
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return;
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return ret;
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}
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if (result < 0) {
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throw new IOException("can not initialize Ghostscript interpreter, error code " + result);
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if (ret < 0) {
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throw new IOException("can not initialize Ghostscript interpreter, error code = " + ret);
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}
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} finally {
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if (nativeInstanceByRef != null) {
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Pointer pointer = nativeInstanceByRef.getValue();
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if (pointer != null) {
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int result = libraryInstance.gsapi_exit(pointer);
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if (result != 0) {
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logger.log(Level.SEVERE, "can not call Ghostscript gsapi_exit, error code " + result);
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if (!quit && ret >= 0) {
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logger.log(Level.INFO, "exiting ghostscript instance " + libraryInstance);
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ret = libraryInstance.gsapi_exit(pointer);
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if (ret != 0) {
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logger.log(Level.SEVERE, "can not call Ghostscript gsapi_exit, error code " + ret);
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}
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logger.log(Level.INFO, "deleting ghostscript instance " + pointer);
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libraryInstance.gsapi_delete_instance(pointer);
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}
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} else {
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logger.log(Level.WARNING, "no pointer to exit");
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}
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libraryInstance.gsapi_delete_instance(nativeInstanceByRef.getValue());
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logger.log(Level.INFO, "ghostscript instance " + nativeInstanceByRef + " deleted");
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}
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}
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return ret;
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}
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@Override
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