| /* |
| * Copyright 2008 Google Inc. |
| * |
| * Licensed 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 com.google.gwt.resources.rebind.context; |
| |
| import com.google.gwt.core.ext.BadPropertyValueException; |
| import com.google.gwt.core.ext.ConfigurationProperty; |
| import com.google.gwt.core.ext.GeneratorContext; |
| import com.google.gwt.core.ext.PropertyOracle; |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.core.ext.typeinfo.JClassType; |
| import com.google.gwt.dev.util.Util; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| class StaticResourceContext extends AbstractResourceContext { |
| /** |
| * The name of a deferred binding property that determines whether or not this |
| * generator will rename the incoming resources to strong file names. |
| */ |
| static final String ENABLE_RENAMING = "ClientBundle.enableRenaming"; |
| |
| StaticResourceContext(TreeLogger logger, GeneratorContext context, |
| JClassType resourceBundleType, ClientBundleContext clientBundleCtx) { |
| super(logger, context, resourceBundleType, clientBundleCtx); |
| } |
| |
| public String deploy(String suggestedFileName, String mimeType, byte[] data, |
| boolean forceExternal) throws UnableToCompleteException { |
| TreeLogger logger = getLogger(); |
| GeneratorContext context = getGeneratorContext(); |
| PropertyOracle propertyOracle = context.getPropertyOracle(); |
| |
| // See if filename obfuscation should be enabled |
| String enableRenaming = null; |
| try { |
| ConfigurationProperty prop = propertyOracle.getConfigurationProperty(ENABLE_RENAMING); |
| getRequirements().addConfigurationProperty(ENABLE_RENAMING); |
| enableRenaming = prop.getValues().get(0); |
| } catch (BadPropertyValueException e) { |
| logger.log(TreeLogger.ERROR, "Bad value for " + ENABLE_RENAMING, e); |
| throw new UnableToCompleteException(); |
| } |
| |
| // Determine the final filename for the resource's file |
| String outputName; |
| if (Boolean.parseBoolean(enableRenaming)) { |
| String strongName = Util.computeStrongName(data); |
| |
| // Determine the extension of the original file |
| String extension; |
| int lastIdx = suggestedFileName.lastIndexOf('.'); |
| if (lastIdx != -1) { |
| extension = suggestedFileName.substring(lastIdx + 1); |
| } else { |
| extension = "noext"; |
| } |
| |
| // The name will be MD5.cache.ext |
| outputName = strongName + ".cache." + extension; |
| } else { |
| outputName = suggestedFileName.substring(suggestedFileName.lastIndexOf('/') + 1); |
| } |
| |
| // Ask the context for an OutputStream into the named resource |
| OutputStream out = context.tryCreateResource(logger, outputName); |
| |
| // This would be null if the resource has already been created in the |
| // output (because two or more resources had identical content). |
| if (out != null) { |
| try { |
| out.write(data); |
| |
| } catch (IOException e) { |
| logger.log(TreeLogger.ERROR, "Unable to write data to output name " |
| + outputName, e); |
| throw new UnableToCompleteException(); |
| } |
| |
| // If there's an error, this won't be called and there will be nothing |
| // created in the output directory. |
| context.commitResource(logger, out); |
| |
| if (logger.isLoggable(TreeLogger.DEBUG)) { |
| logger.log(TreeLogger.DEBUG, "Copied " + data.length + " bytes to " |
| + outputName, null); |
| } |
| } |
| |
| // Return a Java expression |
| return "GWT.getModuleBaseForStaticFiles() + \"" + outputName + "\""; |
| } |
| |
| public boolean supportsDataUrls() { |
| return false; |
| } |
| } |