| /******************************************************************************* |
| * Copyright (c) 2009, 2019 Xored Software Inc and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-v20.html |
| * |
| * Contributors: |
| * Xored Software Inc - initial API and implementation and/or initial documentation |
| *******************************************************************************/ |
| package org.eclipse.rcptt.core.persistence.zip; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipException; |
| import java.util.zip.ZipFile; |
| import java.util.zip.ZipInputStream; |
| |
| import org.eclipse.emf.ecore.resource.Resource; |
| |
| import org.eclipse.rcptt.core.persistence.IPersistenceModel; |
| import org.eclipse.rcptt.core.persistence.IPersistenceModelFactory; |
| import org.eclipse.rcptt.core.persistence.PersistenceManager; |
| import org.eclipse.rcptt.internal.core.RcpttPlugin; |
| import org.eclipse.rcptt.util.FileUtil; |
| |
| public class PersistenceZipModelFactory implements IPersistenceModelFactory { |
| public IPersistenceModel createModel(Resource resource) { |
| return new PersistenceZipModel(resource); |
| } |
| |
| public boolean isSupported(InputStream contents) { |
| try { |
| ZipInputStream zin = new ZipInputStream(new BufferedInputStream( |
| contents)); |
| int entries = 0; |
| boolean hasMeta = false; |
| while (true) { |
| ZipEntry entry = zin.getNextEntry(); |
| if (entry == null) { |
| break; |
| } |
| entries++; |
| if (entry.getName().equalsIgnoreCase( |
| PersistenceManager.CONTENT_ENTRY)) { |
| hasMeta = true; |
| } |
| } |
| return hasMeta && entries > 0; |
| } catch (ZipException zex) { |
| return false; |
| } catch (Throwable e) { |
| RcpttPlugin.log(e); |
| } finally { |
| FileUtil.safeClose(contents); |
| } |
| return false; |
| } |
| |
| public boolean isSupported(File file) { |
| ZipFile zipFile = null; |
| try { |
| zipFile = new ZipFile(file); |
| ZipEntry entry = zipFile.getEntry(PersistenceManager.CONTENT_ENTRY); |
| if (entry != null) { |
| return true; |
| } |
| } catch (ZipException e) { |
| // ignore |
| } catch (IOException e) { |
| // ignore |
| } finally { |
| if (zipFile != null) { |
| try { |
| zipFile.close(); |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| } |
| return false; |
| } |
| } |