/*

  * Copyright 2004-2008 the Seasar Foundation and the Others.

  *

  * 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 org.seasar.uruma.core.impl;

 import java.io.File;

 import java.io.FileFilter;

 import java.io.IOException;

 import java.net.URL;

 import java.util.ArrayList;

 import java.util.Enumeration;

 import java.util.List;

 import java.util.jar.JarEntry;

 import java.util.jar.JarFile;

 import org.seasar.framework.container.annotation.tiger.Binding;

 import org.seasar.framework.container.annotation.tiger.BindingType;

 import org.seasar.framework.util.JarFileUtil;

 import org.seasar.framework.util.StringUtil;

 import org.seasar.uruma.core.TemplateManager;

 import org.seasar.uruma.core.UrumaConstants;

 import org.seasar.uruma.core.UrumaMessageCodes;

 import org.seasar.uruma.core.ViewTemplateLoader;

 import org.seasar.uruma.core.io.ExtFileFilter;

 import org.seasar.uruma.log.UrumaLogger;

 import org.seasar.uruma.rcp.util.RcpResourceUtil;

 import org.seasar.uruma.util.PathUtil;

 /**

  * {@link ViewTemplateLoader} の実装クラスです。<br />

  * 

  * @author y-komori

  */

 public class ViewTemplateLoaderImpl implements ViewTemplateLoader,

         UrumaConstants, UrumaMessageCodes {

     private static final UrumaLogger logger = UrumaLogger

             .getLogger(ViewTemplateLoader.class);

     private TemplateManager templateManager;

     private static final FileFilter filter = new ExtFileFilter("xml");

     /*

      * @see org.seasar.uruma.core.ViewTemplateLoader#loadViewTemplates()

      */

     public void loadViewTemplates(final URL resourceUrl) throws IOException {

         // TODO プロトコル毎にクラスを分けて整理する

         if (UrumaConstants.PROTCOL_FILE.equals(resourceUrl.getProtocol())) {

             File localFile = new File(resourceUrl.getPath());

             File baseDir = new File(localFile.getParent() + SLASH

                     + DEFAULT_VIEWS_PATH);

             logger.log(UrumaMessageCodes.FINDING_XML_START, baseDir

                     .getAbsolutePath());

             List<File> pathList = RcpResourceUtil.findFileResources(baseDir,

                     filter);

             String localBasePath = PathUtil.getParent(localFile

                     .getAbsolutePath());

             List<String> viewFilePaths = new ArrayList<String>(pathList.size());

             for (File file : pathList) {

                 String path = PathUtil.getRelativePath(localBasePath, file

                         .getAbsolutePath());

                 viewFilePaths.add(PathUtil.replaceSeparator(path));

             }

             templateManager.loadTemplates(viewFilePaths);

         } else if (PROTCOL_JAR.equals(resourceUrl.getProtocol())) {

             String jarFilePath = StringUtil.substringFromLast(resourceUrl

                     .getPath(), EXCLAMATION_MARK);

             String jarLocalPath = StringUtil.substringToLast(

                     resourceUrl.getPath(), EXCLAMATION_MARK).substring(1);

             // workebnch.xml の親ディレクトリをクラスパスルートとみなす

             String classPathRoot = PathUtil.getParent(jarLocalPath) + SLASH;

             JarFile jarFile = JarFileUtil.create((new URL(jarFilePath))

                     .getFile());

             logger.log(FINDING_XML_START, jarFilePath + EXCLAMATION_MARK

                     + classPathRoot);

             // TODO SUSIE

             String basePath = DEFAULT_VIEWS_PATH + SLASH;

             List<String> viewFilePaths = new ArrayList<String>();

             Enumeration<JarEntry> entries = jarFile.entries();

             while (entries.hasMoreElements()) {

                 JarEntry entry = entries.nextElement();

                 String entryPath = entry.getName();

                 if (entryPath.startsWith(basePath)

                         && entryPath.endsWith(".xml")) {

                     viewFilePaths.add(PathUtil.replaceSeparator(entryPath));

                 }

             }

             templateManager.loadTemplates(viewFilePaths);

         }

     }

     /**

      * {@link TemplateManager} を設定します。<br />

      * 

      * @param templateManager

      *      {@link TemplateManager}

      */

     @Binding(bindingType = BindingType.MUST)

     public void setTemplateManager(final TemplateManager templateManager) {

         this.templateManager = templateManager;

     }

 }