| /* |
| * 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.ExtensionEntity; |
| import org.apache.ambari.server.utils.VersionUtils; |
| |
| /** |
| * An extension version is like a stack version but it contains custom services. Linking an extension |
| * version to the current stack version allows the cluster to install the custom services contained in |
| * the extension version. |
| */ |
| public class ExtensionId implements Comparable<ExtensionId> { |
| |
| private static final String NAME_SEPARATOR = "-"; |
| |
| private String extensionName; |
| private String extensionVersion; |
| |
| public ExtensionId() { |
| extensionName = ""; |
| extensionVersion = ""; |
| } |
| |
| public ExtensionId(String extensionId) { |
| parseExtensionIdHelper(this, extensionId); |
| } |
| |
| public ExtensionId(ExtensionInfo extension) { |
| extensionName = extension.getName(); |
| extensionVersion = extension.getVersion(); |
| } |
| |
| public ExtensionId(String extensionName, String extensionVersion) { |
| this(extensionName + NAME_SEPARATOR + extensionVersion); |
| } |
| |
| public ExtensionId(ExtensionEntity entity) { |
| this(entity.getExtensionName(), entity.getExtensionVersion()); |
| } |
| |
| /** |
| * @return the extensionName |
| */ |
| public String getExtensionName() { |
| return extensionName; |
| } |
| |
| /** |
| * @return the extensionVersion |
| */ |
| public String getExtensionVersion() { |
| return extensionVersion; |
| } |
| |
| /** |
| * @return the extensionVersion |
| */ |
| public String getExtensionId() { |
| if (extensionName.isEmpty() |
| && extensionVersion.isEmpty()) { |
| return ""; |
| } |
| return extensionName + NAME_SEPARATOR + extensionVersion; |
| } |
| |
| /** |
| * @param extensionId the extensionVersion to set |
| */ |
| public void setExtensionId(String extensionId) { |
| parseExtensionIdHelper(this, extensionId); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean equals(Object object) { |
| if (!(object instanceof ExtensionId)) { |
| return false; |
| } |
| if (this == object) { |
| return true; |
| } |
| ExtensionId s = (ExtensionId) object; |
| return extensionName.equals(s.extensionName) && extensionVersion.equals(s.extensionVersion); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int hashCode() { |
| int result = extensionName != null ? extensionName.hashCode() : 0; |
| result = 31 * result + (extensionVersion != null ? extensionVersion.hashCode() : 0); |
| return result; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int compareTo(ExtensionId other) { |
| if (this == other) { |
| return 0; |
| } |
| |
| if (other == null) { |
| throw new RuntimeException("Cannot compare with a null value."); |
| } |
| |
| int returnValue = getExtensionName().compareTo(other.getExtensionName()); |
| if (returnValue == 0) { |
| returnValue = VersionUtils.compareVersions(getExtensionVersion(), other.getExtensionVersion()); |
| } else { |
| throw new RuntimeException("ExtensionId with different names cannot be compared."); |
| } |
| return returnValue; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public String toString() { |
| return getExtensionId(); |
| } |
| |
| private void parseExtensionIdHelper(ExtensionId extensionVersion, String extensionId) { |
| if (extensionId == null || extensionId.isEmpty()) { |
| extensionVersion.extensionName = ""; |
| extensionVersion.extensionVersion = ""; |
| return; |
| } |
| |
| int pos = extensionId.indexOf('-'); |
| if (pos == -1 || (extensionId.length() <= (pos + 1))) { |
| throw new RuntimeException("Could not parse invalid Extension Id" + ", extensionId=" + extensionId); |
| } |
| |
| extensionVersion.extensionName = extensionId.substring(0, pos); |
| extensionVersion.extensionVersion = extensionId.substring(pos + 1); |
| } |
| } |