| /* |
| * Copyright 2005 The Apache Software Foundation. |
| * |
| * 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.apache.jackrabbit.webdav.lock; |
| |
| import org.apache.jackrabbit.webdav.DavConstants; |
| import org.apache.jackrabbit.webdav.xml.DomUtil; |
| import org.apache.jackrabbit.webdav.xml.Namespace; |
| import org.apache.jackrabbit.webdav.xml.XmlSerializable; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * The <code>Type</code> class encapsulates the lock type as defined by RFC 2518. |
| */ |
| public class Type implements XmlSerializable { |
| |
| private static Map types = new HashMap(); |
| |
| public static final Type WRITE = Type.create(DavConstants.XML_WRITE, DavConstants.NAMESPACE); |
| |
| private final String localName; |
| private final Namespace namespace; |
| |
| /** |
| * Private constructor. |
| * |
| * @param name |
| * @param namespace |
| */ |
| private Type(String name, Namespace namespace) { |
| this.localName = name; |
| this.namespace = namespace; |
| } |
| |
| /** |
| * Returns the Xml representation of this lock <code>Type</code>. |
| * |
| * @return Xml representation |
| * @see org.apache.jackrabbit.webdav.xml.XmlSerializable#toXml(Document) |
| */ |
| public Element toXml(Document document) { |
| Element lockType = DomUtil.createElement(document, DavConstants.XML_LOCKTYPE, DavConstants.NAMESPACE); |
| DomUtil.addChildElement(lockType, localName, namespace); |
| return lockType; |
| } |
| |
| /** |
| * Returns <code>true</code> if this Type is equal to the given one. |
| * |
| * @param obj |
| * @return |
| */ |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof Type) { |
| Type other = (Type) obj; |
| return localName.equals(other.localName) && namespace.equals(other.namespace); |
| } |
| return false; |
| } |
| |
| /** |
| * Create a <code>Type</code> object from the given Xml element. |
| * |
| * @param lockType |
| * @return <code>Type</code> object. |
| */ |
| public static Type createFromXml(Element lockType) { |
| if (lockType != null && DavConstants.XML_LOCKTYPE.equals(lockType.getLocalName())) { |
| // we have the parent element and must retrieve the type first |
| lockType = DomUtil.getFirstChildElement(lockType); |
| } |
| if (lockType == null) { |
| throw new IllegalArgumentException("'null' is not valid lock type entry."); |
| } |
| Namespace namespace = Namespace.getNamespace(lockType.getPrefix(), lockType.getNamespaceURI()); |
| return create(lockType.getLocalName(), namespace); |
| } |
| |
| /** |
| * Create a <code>Type</code> object from the given localName and namespace. |
| * |
| * @param localName |
| * @param namespace |
| * @return <code>Type</code> object. |
| */ |
| public static Type create(String localName, Namespace namespace) { |
| String key = DomUtil.getQualifiedName(localName, namespace); |
| if (types.containsKey(key)) { |
| return (Type) types.get(key); |
| } else { |
| Type type = new Type(localName, namespace); |
| types.put(key, type); |
| return type; |
| } |
| } |
| } |