| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. 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. |
| */ |
| |
| package org.apache.ambari.server.state; |
| |
| import org.apache.ambari.server.orm.entities.StackEntity; |
| import org.apache.ambari.server.utils.VersionUtils; |
| |
| public class StackId implements Comparable<StackId> { |
| |
| private static final String NAME_SEPARATOR = "-"; |
| |
| private String stackName; |
| private String stackVersion; |
| |
| public StackId() { |
| stackName = ""; |
| stackVersion = ""; |
| } |
| |
| public StackId(String stackId) { |
| parseStackIdHelper(this, stackId); |
| } |
| |
| public StackId(StackInfo stackInfo) { |
| stackName = stackInfo.getName(); |
| stackVersion = stackInfo.getVersion(); |
| } |
| |
| public StackId(String stackName, String stackVersion) { |
| this(stackName + NAME_SEPARATOR + stackVersion); |
| } |
| |
| public StackId(StackEntity stackEntity) { |
| this(stackEntity.getStackName(), stackEntity.getStackVersion()); |
| } |
| |
| /** |
| * @return the stackName |
| */ |
| public String getStackName() { |
| return stackName; |
| } |
| |
| /** |
| * @return the stackVersion |
| */ |
| public String getStackVersion() { |
| return stackVersion; |
| } |
| |
| /** |
| * @return the stackVersion |
| */ |
| public String getStackId() { |
| if (stackName.isEmpty() |
| && stackVersion.isEmpty()) { |
| return ""; |
| } |
| return stackName + NAME_SEPARATOR + stackVersion; |
| } |
| |
| /** |
| * @param stackId the stackVersion to set |
| */ |
| public void setStackId(String stackId) { |
| parseStackIdHelper(this, stackId); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean equals(Object object) { |
| if (!(object instanceof StackId)) { |
| return false; |
| } |
| if (this == object) { |
| return true; |
| } |
| StackId s = (StackId) object; |
| return stackName.equals(s.stackName) && stackVersion.equals(s.stackVersion); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int hashCode() { |
| int result = stackName != null ? stackName.hashCode() : 0; |
| result = 31 * result + (stackVersion != null ? stackVersion.hashCode() : 0); |
| return result; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int compareTo(StackId other) { |
| if (this == other) { |
| return 0; |
| } |
| |
| if (other == null) { |
| throw new RuntimeException("Cannot compare with a null value."); |
| } |
| |
| int returnValue = getStackName().compareTo(other.getStackName()); |
| if (returnValue == 0) { |
| returnValue = VersionUtils.compareVersions(getStackVersion(), other.getStackVersion()); |
| } else { |
| throw new RuntimeException("StackId with different names cannot be compared."); |
| } |
| return returnValue; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public String toString() { |
| return getStackId(); |
| } |
| |
| private void parseStackIdHelper(StackId stackVersion, String stackId) { |
| if (stackId == null || stackId.isEmpty()) { |
| stackVersion.stackName = ""; |
| stackVersion.stackVersion = ""; |
| return; |
| } |
| |
| int pos = stackId.indexOf('-'); |
| if (pos == -1 || (stackId.length() <= (pos + 1))) { |
| throw new RuntimeException("Could not parse invalid Stack Id" + ", stackId=" + stackId); |
| } |
| |
| stackVersion.stackName = stackId.substring(0, pos); |
| stackVersion.stackVersion = stackId.substring(pos + 1); |
| } |
| } |