| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. The ASF licenses this file to You |
| * 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. For additional information regarding |
| * copyright in this work, please see the NOTICE file in the top level |
| * directory of this distribution. |
| */ |
| package org.apache.abdera2.common.protocol; |
| |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| /** |
| * Identifies the type of resource being requests. |
| */ |
| public final class TargetType { |
| |
| public static final String UNKNOWN = "UNKNOWN"; |
| public static final String NOT_FOUND = "NOT_FOUND"; |
| public static final String SERVICE = "SERVICE"; |
| public static final String COLLECTION = "COLLECTION"; |
| public static final String ENTRY = "ENTRY"; |
| public static final String MEDIA = "MEDIA"; |
| public static final String CATEGORIES = "CATEGORIES"; |
| |
| private static final Map<String, TargetType> types = |
| new ConcurrentHashMap<String, TargetType>(); |
| |
| /** |
| * An unknown target type |
| */ |
| public static final TargetType TYPE_UNKNOWN = new TargetType(UNKNOWN); |
| /** |
| * A not found target type |
| */ |
| public static final TargetType TYPE_NOT_FOUND = new TargetType(NOT_FOUND); |
| /** |
| * An Atompub Service Document |
| */ |
| public static final TargetType TYPE_SERVICE = new TargetType(SERVICE); |
| /** |
| * An Atom Feed Document representing an Atompub Collection |
| */ |
| public static final TargetType TYPE_COLLECTION = new TargetType(COLLECTION); |
| /** |
| * An Atompub Collection member entry |
| */ |
| public static final TargetType TYPE_ENTRY = new TargetType(ENTRY); |
| /** |
| * An Atompub Collection media resource |
| */ |
| public static final TargetType TYPE_MEDIA = new TargetType(MEDIA); |
| /** |
| * An Atompub Categories Document |
| */ |
| public static final TargetType TYPE_CATEGORIES = new TargetType(CATEGORIES); |
| |
| /** |
| * Return a listing of TargetTypes |
| */ |
| public static Iterable<TargetType> values() { |
| return types.values(); |
| } |
| |
| /** |
| * Get the specified target type |
| */ |
| public static TargetType get(String name) { |
| return types.get(name.toUpperCase()); |
| } |
| |
| /** |
| * Get the specified target type. If the target type does not currently exist, and create = true, a new type will be |
| * created. |
| */ |
| public static TargetType get(String name, boolean create) { |
| if (name == null) |
| return null; |
| TargetType type = get(name); |
| return type != null ? type : create ? create(name) : null; |
| } |
| |
| private static synchronized TargetType create(String name) { |
| TargetType type = new TargetType(name.toUpperCase()); |
| types.put(type.name(), type); |
| return type; |
| } |
| |
| private final String name; |
| |
| private TargetType(String name) { |
| if (name == null || name.length() == 0) |
| throw new IllegalArgumentException(); |
| if (get(name) != null) |
| throw new IllegalArgumentException(); |
| this.name = name.toUpperCase(); |
| types.put(name, this); |
| } |
| |
| /** |
| * Return the target name |
| */ |
| public String name() { |
| return name; |
| } |
| |
| public String toString() { |
| return name; |
| } |
| |
| public int hashCode() { |
| final int PRIME = 31; |
| int result = 1; |
| result = PRIME * result + ((name == null) ? 0 : name.hashCode()); |
| return result; |
| } |
| |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| final TargetType other = (TargetType)obj; |
| if (name == null) { |
| if (other.name != null) |
| return false; |
| } else if (!name.equals(other.name)) |
| return false; |
| return true; |
| } |
| |
| } |