Java tutorial
/** * Licensed to jclouds, Inc. (jclouds) under one or more * contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. jclouds 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. */ package org.jclouds.tmrk.enterprisecloud.domain.hardware; import com.google.common.collect.Sets; import javax.xml.bind.annotation.XmlElement; import java.util.Collections; import java.util.LinkedHashSet; import java.util.Set; import static com.google.common.base.Preconditions.checkNotNull; /** * Wraps individual Disk elements. * Needed because parsing is done with JAXB and it does not handle Generic collections * <xs:complexType name="Disks"> * @author Jason King */ public class Disks { @SuppressWarnings("unchecked") public static Builder builder() { return new Builder(); } public Builder toBuilder() { return new Builder().fromDisks(this); } public static class Builder { private Set<VirtualDisk> disks = Sets.newLinkedHashSet(); /** * @see Disks#getVirtualDisks() */ public Builder disks(Set<VirtualDisk> disks) { this.disks = Sets.newLinkedHashSet(checkNotNull(disks, "disks")); return this; } public Builder addDisk(VirtualDisk disk) { disks.add(checkNotNull(disk, "disk")); return this; } public Disks build() { return new Disks(disks); } public Builder fromDisks(Disks in) { return disks(in.getVirtualDisks()); } } @XmlElement(name = "Disk") private LinkedHashSet<VirtualDisk> disks = Sets.newLinkedHashSet(); private Disks() { //For JAXB and builder use } private Disks(Set<VirtualDisk> disks) { this.disks = Sets.newLinkedHashSet(disks); } public Set<VirtualDisk> getVirtualDisks() { return Collections.unmodifiableSet(disks); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; Disks disks1 = (Disks) o; if (!disks.equals(disks1.disks)) return false; return true; } @Override public int hashCode() { return disks.hashCode(); } public String toString() { return "[" + disks.toString() + "]"; } }