| /******************************************************************************* |
| * Copyright (c) 2001, 2004 IBM Corporation 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 |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.j2ee.commonarchivecore.internal; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| |
| |
| /** |
| * @author mdelder |
| */ |
| public class ArchiveTypeDiscriminatorRegistry { |
| |
| private Collection discriminators = null; |
| private Collection customTypes = null; |
| |
| /* |
| * Most known types are of length 3. Whenver a new type is added that is not of length 3, |
| * modifications may be necessary to the 'isKnownArchiveType() method |
| */ |
| private static final String[] defaultKnownTypes = new String[]{"ear", "war", "jar", "zip", "far"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ |
| |
| |
| public static final ArchiveTypeDiscriminatorRegistry INSTANCE = new ArchiveTypeDiscriminatorRegistry(); |
| |
| public static void registorDiscriminator(GenericArchiveTypeDiscriminator discriminator) { |
| INSTANCE.getDiscriminators().add(discriminator); |
| INSTANCE.addKnownArchiveTypes(discriminator.getCustomFileExtensions()); |
| } |
| |
| public static ArchiveTypeDiscriminatorRegistry getInstance() { |
| return INSTANCE; |
| } |
| |
| /** |
| * @return |
| */ |
| public Collection getDiscriminators() { |
| if (discriminators == null) |
| discriminators = new ArrayList(); |
| return discriminators; |
| } |
| |
| public void contributeTypes(Archive archive) { |
| if (discriminators == null) |
| return; |
| GenericArchiveTypeDiscriminator discriminator = null; |
| for (Iterator itr = discriminators.iterator(); itr.hasNext();) { |
| discriminator = (GenericArchiveTypeDiscriminator) itr.next(); |
| if (discriminator.discriminate(archive)) |
| archive.getTypes().add(discriminator.getTypeKey()); |
| } |
| } |
| |
| public void addKnownArchiveTypes(String[] newTypes) { |
| if (customTypes == null) { |
| customTypes = new ArrayList(); |
| } |
| for (int i = 0; i < newTypes.length; i++) { |
| customTypes.add(newTypes[i]); |
| } |
| } |
| |
| public boolean isKnownArchiveType(String fileURI) { |
| if (fileURI == null || fileURI.length() == 0) |
| return false; |
| |
| String lowerCaseUri = fileURI.toLowerCase(); |
| /* |
| * Ensure that the length of the URI is long enough to contain a .3 style extension |
| */ |
| if (lowerCaseUri.length() > 4 && lowerCaseUri.charAt(lowerCaseUri.length() - 4) == '.') { |
| String ending = lowerCaseUri.substring(lowerCaseUri.length() - 3); |
| for (int i = 0; i < defaultKnownTypes.length; i++) |
| if (defaultKnownTypes[i].equals(ending)) |
| return true; |
| } |
| |
| String customType = null; |
| if (customTypes != null) { |
| Iterator customTypesIterator = customTypes.iterator(); |
| while (customTypesIterator.hasNext()) { |
| customType = (String) customTypesIterator.next(); |
| if (fileURI.endsWith(customType)) |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| } |