Bugzilla#53751: Slightly restructured the way the FontCache creates a cache-file

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1374238 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/afp/util/AFPResourceAccessor.java

         URI resolveURI(String uri);
     }
 
-    private final class NullBaseURIResolver implements URIResolver {
+    private static final class NullBaseURIResolver implements URIResolver {
 
         public URI resolveURI(URI uri) {
             return uri;

src/java/org/apache/fop/cli/CommandLineOptions.java

             throw new FOPException("if you use '-cache', you must specify "
               + "the name of the font cache file");
         } else {
-            factory.getFontManager().setCacheFile(new File(args[i + 1]));
+            factory.getFontManager().setCacheFile(URI.create(args[i + 1]));
             return 1;
         }
     }

src/java/org/apache/fop/fonts/FontCacheManager.java

 
 package org.apache.fop.fonts;
 
-import java.io.File;
+import java.net.URI;
 
 import org.apache.fop.apps.FOPException;
 
  */
 public interface FontCacheManager {
 
+    /**
+     * Sets the font cache file given the URI pointing to the file.
+     * @param fontCacheURI the font cache URI
+     */
+    void setCacheFile(URI fontCacheURI);
+
     /**
      * Loads the font cache into memory from the given file.
-     * @param file the serialized font cache
      * @return the de-serialized font cache
      */
-    FontCache load(File file);
+    FontCache load();
 
     /**
      * Serializes the font cache to file.
-     * @param file the file to serialize the font cache to
      * @throws FOPException if an error occurs serializing the font cache
      */
-    void save(File file) throws FOPException;
+    void save() throws FOPException;
 
     /**
      * Deletes the font cache from the file-system.
-     * @param file delete the serialized font cache
      * @throws FOPException if an error occurs deleting the font cache
      */
-    void delete(File file) throws FOPException;
-
+    void delete() throws FOPException;
 }

src/java/org/apache/fop/fonts/FontCacheManagerFactory.java

 package org.apache.fop.fonts;
 
 import java.io.File;
+import java.net.URI;
 
 import org.apache.fop.apps.FOPException;
 
 
     private static final class FontCacheManagerImpl implements FontCacheManager {
 
+        /** Provides a font cache file path **/
+        private File cacheFile;
+
         private FontCache fontCache;
 
-        public FontCache load(File cacheFile) {
+        public FontCache load() {
             if (fontCache == null) {
-                fontCache = FontCache.loadFrom(cacheFile);
+                fontCache = FontCache.loadFrom(getCacheFile(false));
                 if (fontCache == null) {
                     fontCache = new FontCache();
                 }
             return fontCache;
         }
 
-        public void save(File cacheFile) throws FOPException {
+        public void save() throws FOPException {
             if (fontCache != null && fontCache.hasChanged()) {
-                fontCache.saveTo(cacheFile);
+                fontCache.saveTo(getCacheFile(true));
             }
         }
 
-        public void delete(File cacheFile) throws FOPException {
-            if (!cacheFile.delete()) {
+        public void delete() throws FOPException {
+            if (!getCacheFile(true).delete()) {
                 throw new FOPException("Failed to flush the font cache file '" + cacheFile + "'.");
             }
         }
+
+        private File getCacheFile(boolean forWriting) {
+            if (cacheFile != null) {
+                return cacheFile;
+            }
+            return FontCache.getDefaultCacheFile(forWriting);
+        }
+
+        public void setCacheFile(URI fontCacheURI) {
+            cacheFile = new File(fontCacheURI);
+        }
     }
 
     private static final class DisabledFontCacheManager implements FontCacheManager {
 
-        public FontCache load(File cacheFile) {
+        public FontCache load() {
             return null;
         }
 
-        public void save(File cacheFile) throws FOPException {
+        public void save() throws FOPException {
             // nop
         }
 
-        public void delete(File cacheFile) throws FOPException {
+        public void delete() throws FOPException {
             throw new FOPException("Font Cache disabled");
         }
+
+        public void setCacheFile(URI fontCacheURI) {
+            // nop
+        }
     }
 }

src/java/org/apache/fop/fonts/FontManager.java

 
 package org.apache.fop.fonts;
 
-import java.io.File;
+import java.net.URI;
 import java.util.List;
 
 import org.apache.fop.apps.FOPException;
     /** FontTriplet matcher for fonts that shall be referenced rather than embedded. */
     private FontTriplet.Matcher referencedFontsMatcher;
 
-    /** Provides a font cache file path **/
-    private File cacheFile;
-
     /**
      * Main constructor
      *
 
     /**
      * Sets the font cache file
-     * @param cacheFile the font cache file
-     */
-    public void setCacheFile(File cacheFile) {
-        this.cacheFile = cacheFile;
-    }
-
-    /**
-     * Returns the font cache file
-     * @return the font cache file
+     * @param cacheFileURI the URI of the font cache file
      */
-    public File getCacheFile() {
-        return getCacheFile(false);
-    }
-
-    private File getCacheFile(boolean writable) {
-        if (cacheFile != null) {
-            return cacheFile;
-        }
-        return FontCache.getDefaultCacheFile(writable);
+    public void setCacheFile(URI cacheFileURI) {
+        fontCacheManager.setCacheFile(resourceResolver.resolveFromBase(cacheFileURI));
     }
 
     /**
      * @return the font cache
      */
     public FontCache getFontCache() {
-        return fontCacheManager.load(getCacheFile());
+        return fontCacheManager.load();
     }
 
     /**
      * @throws FOPException fop exception
      */
     public void saveCache() throws FOPException {
-        fontCacheManager.save(getCacheFile());
+        fontCacheManager.save();
     }
 
     /**
      * @throws FOPException if an error was thrown while deleting the cache
      */
     public void deleteCache() throws FOPException {
-        fontCacheManager.delete(getCacheFile(true));
+        fontCacheManager.delete();
     }
 
     /**

src/java/org/apache/fop/fonts/FontManagerConfigurator.java

 
 package org.apache.fop.fonts;
 
-import java.io.File;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.util.List;
      * @throws FOPException if an exception occurs while processing the configuration
      */
     public void configure(FontManager fontManager, boolean strict) throws FOPException {
+        if (cfg.getChild("font-base", false) != null) {
+            try {
+                URI fontBase = InternalResourceResolver.getBaseURI(cfg.getChild("font-base")
+                                                                      .getValue(null));
+                fontManager.setResourceResolver(ResourceResolverFactory.createInternalResourceResolver(
+                        defaultBaseUri.resolve(fontBase), resourceResolver));
+            } catch (URISyntaxException use) {
+                LogUtil.handleException(log, use, true);
+            }
+        } else {
+            fontManager.setResourceResolver(ResourceResolverFactory.createInternalResourceResolver(
+                    defaultBaseUri, resourceResolver));
+        }
         // caching (fonts)
         if (cfg.getChild("use-cache", false) != null) {
             try {
                     fontManager.disableFontCache();
                 } else {
                     if (cfg.getChild("cache-file", false) != null) {
-                        fontManager.setCacheFile(new File(cfg.getChild("cache-file").getValue()));
+
+                        fontManager.setCacheFile(URI.create(cfg.getChild("cache-file").getValue()));
                     }
                 }
             } catch (ConfigurationException mfue) {
                 LogUtil.handleException(log, mfue, true);
             }
         }
-        if (cfg.getChild("font-base", false) != null) {
-            try {
-                URI fontBase = InternalResourceResolver.getBaseURI(cfg.getChild("font-base").getValue(
-                        null));
-                fontManager.setResourceResolver(ResourceResolverFactory.createInternalResourceResolver(
-                        defaultBaseUri.resolve(fontBase), resourceResolver));
-            } catch (URISyntaxException use) {
-                LogUtil.handleException(log, use, true);
-            }
-        } else {
-            fontManager.setResourceResolver(ResourceResolverFactory.createInternalResourceResolver(
-                    defaultBaseUri, resourceResolver));
-        }
-
         // [GA] permit configuration control over base14 kerning; without this,
         // there is no way for a user to enable base14 kerning other than by
         // programmatic API;

test/java/org/apache/fop/fonts/FontManagerTestCase.java

+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.fop.fonts;
+
+import java.net.URI;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.InOrder;
+
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.inOrder;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+import org.apache.fop.apps.FOPException;
+import org.apache.fop.apps.io.InternalResourceResolver;
+
+public class FontManagerTestCase {
+
+    private FontManager sut;
+    private FontCacheManager fontCacheManager;
+    private FontDetector fontDetector;
+    private InternalResourceResolver resolver;
+
+    @Before
+    public void setUp() {
+        resolver = mock(InternalResourceResolver.class);
+        fontCacheManager = mock(FontCacheManager.class);
+        fontDetector = mock(FontDetector.class);
+
+        sut = new FontManager(resolver, fontDetector, fontCacheManager);
+    }
+
+    @Test
+    public void testSetCacheFile() {
+        URI testURI = URI.create("test/uri");
+        sut.setCacheFile(testURI);
+
+        InOrder inOrder = inOrder(resolver, fontCacheManager);
+        inOrder.verify(resolver).resolveFromBase(testURI);
+        inOrder.verify(fontCacheManager).setCacheFile(any(URI.class));
+    }
+
+    @Test
+    public void testGetFontCache() {
+        sut.getFontCache();
+        verify(fontCacheManager).load();
+    }
+
+    @Test
+    public void testSaveCache() throws FOPException {
+        sut.saveCache();
+        verify(fontCacheManager).save();
+    }
+
+    @Test
+    public void testDeleteCache() throws FOPException {
+        sut.deleteCache();
+        verify(fontCacheManager).delete();
+    }
+}