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+/*
+ * Copyright (C) 2001, 2002 The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with any library licensed under the Apache Software License,
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
+ * (or with modified versions of the above that use the same license as the above),
+ * and distribute linked combinations including the two. You must obey the
+ * GNU General Public License in all respects for all of the code used other than
+ * the above mentioned libraries. If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
+ * If you do not wish to do so, delete this exception statement from your version.
+ */
+
+package mircoders.localizer;
+
+import mir.entity.adapter.EntityAdapterModel;
+import mir.generator.Generator;
+import mir.generator.WriterEngine;
+
+/**
+ * This was used to prevent localizers from being created
+ * all the time.
+ *
+ */
+public class LocalizerCache implements MirLocalizer {
+ private MirLocalizer localizer;
+ private MirProducerLocalizer producerLocalizer;
+ private MirGeneratorLocalizer generatorLocalizer;
+ private MirOpenPostingLocalizer openPostingsLocalizer;
+ private MirProducerAssistantLocalizer producerAssistantLocalizer;
+ private MirDataModelLocalizer dataModelLocalizer;
+ private MirAdminInterfaceLocalizer adminInterfaceLocalizer;
+ private MirMediaLocalizer mediaLocalizer;
+
+ public LocalizerCache(MirLocalizer aLocalizer) {
+ localizer = aLocalizer;
+ }
+
+ public MirProducerLocalizer producers() throws MirLocalizerFailure {
+ if (producerLocalizer==null) {
+ producerLocalizer = localizer.producers();
+ }
+
+ return producerLocalizer;
+ }
+
+ public MirGeneratorLocalizer generators() throws MirLocalizerFailure {
+ if (generatorLocalizer==null) {
+ generatorLocalizer = new MirCachingGeneratorLocalizer(localizer.generators());
+ }
+
+ return generatorLocalizer;
+ }
+
+ public MirOpenPostingLocalizer openPostings() throws MirLocalizerFailure {
+ if (openPostingsLocalizer==null) {
+ openPostingsLocalizer = localizer.openPostings();
+ }
+
+ return openPostingsLocalizer;
+ }
+
+ public MirProducerAssistantLocalizer producerAssistant() throws MirLocalizerFailure {
+ if (producerAssistantLocalizer==null) {
+ producerAssistantLocalizer = localizer.producerAssistant();
+ }
+
+ return producerAssistantLocalizer;
+ }
+
+ public MirDataModelLocalizer dataModel() throws MirLocalizerFailure {
+ if (dataModelLocalizer==null) {
+ dataModelLocalizer = new MirCachingDatamodelLocalizer(localizer.dataModel());
+ }
+
+ return dataModelLocalizer;
+ }
+
+ public MirAdminInterfaceLocalizer adminInterface() throws MirLocalizerFailure {
+ if (adminInterfaceLocalizer==null) {
+ adminInterfaceLocalizer = localizer.adminInterface();
+ }
+
+ return adminInterfaceLocalizer;
+ }
+
+ public MirMediaLocalizer media() throws MirLocalizerFailure {
+ if (mediaLocalizer==null) {
+ mediaLocalizer = localizer.media();
+ }
+
+ return mediaLocalizer;
+ }
+
+ private static class MirCachingDatamodelLocalizer implements MirDataModelLocalizer {
+ private MirDataModelLocalizer master;
+ private EntityAdapterModel adapterModel;
+
+ public MirCachingDatamodelLocalizer(MirDataModelLocalizer aMaster) {
+ master = aMaster;
+ adapterModel = null;
+ }
+
+ public EntityAdapterModel adapterModel() throws MirLocalizerExc, MirLocalizerFailure {
+ if (adapterModel==null) {
+ adapterModel = master.adapterModel();
+ }
+
+ return adapterModel;
+ }
+
+ }
+
+ private static class MirCachingGeneratorLocalizer implements MirGeneratorLocalizer {
+ private MirGeneratorLocalizer master;
+ private WriterEngine writerEngine;
+ private Generator.Library producerGeneratorLibrary;
+ private Generator.Library adminGeneratorLibrary;
+ private Generator.Library openPostingGeneratorLibrary;
+
+ public MirCachingGeneratorLocalizer(MirGeneratorLocalizer aMaster) {
+ master = aMaster;
+ }
+
+ public WriterEngine makeWriterEngine() throws MirLocalizerExc, MirLocalizerFailure {
+ if (writerEngine==null) {
+ writerEngine = master.makeWriterEngine();
+ }
+
+ return writerEngine;
+ }
+
+ public Generator.Library makeProducerGeneratorLibrary() throws MirLocalizerExc, MirLocalizerFailure {
+ if (producerGeneratorLibrary==null) {
+ producerGeneratorLibrary = master.makeProducerGeneratorLibrary();
+ }
+
+ return producerGeneratorLibrary;
+ }
+
+ public Generator.Library makeAdminGeneratorLibrary() throws MirLocalizerExc, MirLocalizerFailure {
+ if (adminGeneratorLibrary==null) {
+ adminGeneratorLibrary = master.makeAdminGeneratorLibrary();
+ }
+
+ return adminGeneratorLibrary;
+ }
+
+ public Generator.Library makeOpenPostingGeneratorLibrary() throws MirLocalizerExc, MirLocalizerFailure {
+ if (openPostingGeneratorLibrary==null) {
+ openPostingGeneratorLibrary = master.makeOpenPostingGeneratorLibrary();
+ }
+
+ return openPostingGeneratorLibrary;
+ }
+ }
+
+}
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