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.template; import com.google.common.collect.Sets; import javax.xml.bind.annotation.XmlElement; import java.util.Collections; import java.util.Set; import static com.google.common.base.Preconditions.checkNotNull; /** * Wraps individual TemplateOperatingSystem elements. * Needed because parsing is done with JAXB and it does not handle Generic collections * <xs:complexType name="TemplateOperatingSystems"> * @author Jason King */ public class TemplateOperatingSystems { @SuppressWarnings("unchecked") public static Builder builder() { return new Builder(); } public Builder toBuilder() { return new Builder().fromTemplateOperatingSystems(this); } public static class Builder { private Set<TemplateOperatingSystem> operatingSystems = Sets.newLinkedHashSet(); /** * @see TemplateOperatingSystems#getTemplateOperatingSystems() */ public Builder operatingSystems(Set<TemplateOperatingSystem> operatingSystems) { this.operatingSystems = Sets.newLinkedHashSet(checkNotNull(operatingSystems, "operatingSystems")); return this; } public Builder addOperatingSystem(TemplateOperatingSystem operatingSystem) { operatingSystems.add(checkNotNull(operatingSystem, "operatingSystem")); return this; } public TemplateOperatingSystems build() { return new TemplateOperatingSystems(operatingSystems); } public Builder fromTemplateOperatingSystems(TemplateOperatingSystems in) { return operatingSystems(in.getTemplateOperatingSystems()); } } private TemplateOperatingSystems() { //For JAXB and builder use } private TemplateOperatingSystems(Set<TemplateOperatingSystem> operatingSystems) { this.operatingSystems = Sets.newLinkedHashSet(operatingSystems); } @XmlElement(name = "OperatingSystem") private Set<TemplateOperatingSystem> operatingSystems = Sets.newLinkedHashSet(); public Set<TemplateOperatingSystem> getTemplateOperatingSystems() { return Collections.unmodifiableSet(operatingSystems); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; TemplateOperatingSystems that = (TemplateOperatingSystems) o; if (operatingSystems != null ? !operatingSystems.equals(that.operatingSystems) : that.operatingSystems != null) return false; return true; } @Override public int hashCode() { return operatingSystems != null ? operatingSystems.hashCode() : 0; } public String toString() { return "[" + operatingSystems.toString() + "]"; } }