Java tutorial
/* * Copyright (C) 2012 NS Solutions Corporation * * 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.htmlhifive.tools.wizard; import java.io.BufferedInputStream; import java.io.IOException; import java.io.InputStream; import java.lang.reflect.InvocationTargetException; import java.net.MalformedURLException; import org.apache.commons.io.IOUtils; import org.apache.commons.lang.StringUtils; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.jface.dialogs.ProgressMonitorDialog; import org.eclipse.jface.operation.IRunnableWithProgress; import com.htmlhifive.tools.wizard.download.ConnectMethodFactory; import com.htmlhifive.tools.wizard.download.DownloadModule; import com.htmlhifive.tools.wizard.download.IConnectMethod; import com.htmlhifive.tools.wizard.library.LibraryList; import com.htmlhifive.tools.wizard.library.parser.LibraryFileParser; import com.htmlhifive.tools.wizard.library.parser.LibraryFileParserFactory; import com.htmlhifive.tools.wizard.library.parser.ParseException; import com.htmlhifive.tools.wizard.log.ResultStatus; import com.htmlhifive.tools.wizard.log.messages.Messages; import com.htmlhifive.tools.wizard.utils.H5IOUtils; /** * <H3>?.</H3> * * @author fkubo */ public abstract class RemoteContentManager { private static final String LOCAL_LIBRARIES_XML = "/local-libraries.xml"; /** * . * * @param shell * @return * @throws CoreException */ public static LibraryList getLibraryList() { return getLibraryList(false); } /** * . * * @param refresh * @param shell * @return */ public static LibraryList getLibraryList(boolean refresh) { if (!refresh && H5WizardPlugin.getInstance().getLibraryList() != null) { return H5WizardPlugin.getInstance().getLibraryList(); } // ????? H5WizardPlugin.getInstance().setLibraryList(null); H5WizardPlugin.getInstance().getSelectedLibrarySet().clear(); ResultStatus resultStatus = new ResultStatus(); ProgressMonitorDialog dialog = new ProgressMonitorDialog(null); // ?. for (String urlStr : new String[] { PluginConstant.URL_LIBRARY_LIST, PluginConstant.URL_LIBRARY_LIST_MIRROR, LOCAL_LIBRARIES_XML }) { if (StringUtils.isNotEmpty(urlStr)) { InputStream is = null; DownloadModule downloadModule = new DownloadModule(); try { // IConnectMethod method = ConnectMethodFactory.getMethod(urlStr, true); // method.setConnectionTimeout(PluginConstant.URL_LIBRARY_LIST_CONNECTION_TIMEOUT); // method.setProxy(downloadModule.getProxyService()); // is = method.getInputStream(); // if (is == null) { // resultStatus.log(Messages.SE0046, urlStr); // } else { // LibraryFileParser parser = LibraryFileParserFactory.createParser(is); // LibraryList libraryList = parser.getLibraryList(); // libraryList.setLastModified(method.getLastModified()); // libraryList.setSource(urlStr); // H5WizardPlugin.getInstance().setLibraryList(libraryList); // ??????. // return libraryList; // } // } catch (ParseException e) { // resultStatus.log(e, Messages.SE0046, urlStr); // } catch (MalformedURLException e) { // resultStatus.log(e, Messages.SE0046, urlStr); // } catch (IOException e) { // resultStatus.log(e, Messages.SE0046, urlStr); //??? final IRunnableWithProgress runnable = getSiteDownLoad(resultStatus, urlStr, downloadModule); try { dialog.run(true, false, runnable); if (resultStatus.isSuccess()) { return H5WizardPlugin.getInstance().getLibraryList(); } } catch (InvocationTargetException e) { resultStatus.log(e, Messages.SE0046, urlStr); } catch (InterruptedException e) { resultStatus.log(e, Messages.SE0046, urlStr); } } finally { downloadModule.close(); IOUtils.closeQuietly(is); } } } // // ??. // InputStream is = null; // try { // URLConnection connection = RemoteContentManager.class.getResource(LOCAL_LIBRARIES_XML).openConnection(); // is = connection.getInputStream(); // if (is == null) { // resultStatus.log(Messages.SE0046, LOCAL_LIBRARIES_XML); // } else { // LibraryFileParser parser = LibraryFileParserFactory.createParser(is); // LibraryList libraryList = parser.getLibraryList(); // if (connection.getLastModified() > 0) { // libraryList.setLastModified(new Date(connection.getLastModified())); // } // libraryList.setSource(null); // H5WizardPlugin.getInstance().setLibraryList(libraryList); // ??????. // return libraryList; // } // } catch (ParseException e) { // resultStatus.log(e, Messages.SE0046, LOCAL_LIBRARIES_XML); // } catch (IOException e) { // resultStatus.log(e, Messages.SE0046, LOCAL_LIBRARIES_XML); // } finally { // IOUtils.closeQuietly(is); // } if (!resultStatus.isSuccess()) { // ?. resultStatus.falureDialog(Messages.PI0139, Messages.PI0140); } return null; } private static IRunnableWithProgress getSiteDownLoad(final ResultStatus resultStatus, final String urlStr, final DownloadModule downloadModule) { return new IRunnableWithProgress() { @Override public void run(final IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { monitor.setTaskName(Messages.PI0141.format(urlStr)); BufferedInputStream bufferIs = null; try { IConnectMethod method = ConnectMethodFactory.getMethod(urlStr, true); if (!H5IOUtils.isClassResources(urlStr)) { method.setConnectionTimeout(PluginConstant.URL_LIBRARY_LIST_CONNECTION_TIMEOUT); method.setProxy(downloadModule.getProxyService()); } InputStream is = method.getInputStream(); if (is == null) { resultStatus.log(Messages.SE0046, urlStr); } else { final int content = method.getContentLength(); monitor.beginTask(Messages.PI0142.format(urlStr), content); bufferIs = new BufferedInputStream(is) { private int current = 0; @Override public synchronized int read() throws IOException { int result = super.read(); current += result * 16; monitor.subTask(Messages.PI0143.format(current, content, urlStr)); monitor.worked(result * 16); return result; } }; LibraryFileParser parser = LibraryFileParserFactory.createParser(bufferIs); LibraryList libraryList = parser.getLibraryList(); libraryList.setLastModified(method.getLastModified()); if (H5IOUtils.isClassResources(urlStr)) { libraryList.setSource(null); // ??. } else { libraryList.setSource(urlStr); } H5WizardPlugin.getInstance().setLibraryList(libraryList); // ??????. resultStatus.setSuccess(true); // ?????. monitor.done(); } } catch (ParseException e) { resultStatus.log(e, Messages.SE0046, urlStr); } catch (MalformedURLException e) { resultStatus.log(e, Messages.SE0046, urlStr); } catch (IOException e) { resultStatus.log(e, Messages.SE0046, urlStr); } finally { IOUtils.closeQuietly(bufferIs); //Thread.currentThread().wait(5000); } } }; } }