001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.rest.model; 019 020import com.fasterxml.jackson.annotation.JsonProperty; 021import java.io.IOException; 022import java.io.Serializable; 023import java.util.ArrayList; 024import java.util.List; 025import javax.xml.bind.annotation.XmlAccessType; 026import javax.xml.bind.annotation.XmlAccessorType; 027import javax.xml.bind.annotation.XmlElement; 028import javax.xml.bind.annotation.XmlRootElement; 029import org.apache.hadoop.hbase.NamespaceDescriptor; 030import org.apache.hadoop.hbase.client.Admin; 031import org.apache.hadoop.hbase.rest.ProtobufMessageHandler; 032import org.apache.hadoop.hbase.rest.RestUtil; 033import org.apache.yetus.audience.InterfaceAudience; 034 035import org.apache.hbase.thirdparty.com.google.protobuf.CodedInputStream; 036import org.apache.hbase.thirdparty.com.google.protobuf.Message; 037 038import org.apache.hadoop.hbase.shaded.rest.protobuf.generated.NamespacesMessage.Namespaces; 039 040/** 041 * A list of HBase namespaces. 042 * <ul> 043 * <li>Namespace: namespace name</li> 044 * </ul> 045 */ 046@XmlRootElement(name = "Namespaces") 047@XmlAccessorType(XmlAccessType.FIELD) 048@InterfaceAudience.Private 049public class NamespacesModel implements Serializable, ProtobufMessageHandler { 050 051 private static final long serialVersionUID = 1L; 052 053 @JsonProperty("Namespace") 054 @XmlElement(name = "Namespace") 055 private List<String> namespaces = new ArrayList<>(); 056 057 /** 058 * Default constructor. Do not use. 059 */ 060 public NamespacesModel() { 061 } 062 063 /** 064 * Constructor 065 * @param admin the administrative API 066 */ 067 public NamespacesModel(Admin admin) throws IOException { 068 NamespaceDescriptor[] nds = admin.listNamespaceDescriptors(); 069 namespaces = new ArrayList<>(nds.length); 070 for (NamespaceDescriptor nd : nds) { 071 namespaces.add(nd.getName()); 072 } 073 } 074 075 /** Returns all namespaces */ 076 public List<String> getNamespaces() { 077 return namespaces; 078 } 079 080 /** 081 * @param namespaces the namespace name array 082 */ 083 public void setNamespaces(List<String> namespaces) { 084 this.namespaces = namespaces; 085 } 086 087 /* 088 * (non-Javadoc) 089 * @see java.lang.Object#toString() 090 */ 091 @Override 092 public String toString() { 093 StringBuilder sb = new StringBuilder(); 094 for (String namespace : namespaces) { 095 sb.append(namespace); 096 sb.append("\n"); 097 } 098 return sb.toString(); 099 } 100 101 @Override 102 public Message messageFromObject() { 103 Namespaces.Builder builder = Namespaces.newBuilder(); 104 builder.addAllNamespace(namespaces); 105 return builder.build(); 106 } 107 108 @Override 109 public ProtobufMessageHandler getObjectFromMessage(CodedInputStream cis) throws IOException { 110 Namespaces.Builder builder = Namespaces.newBuilder(); 111 RestUtil.mergeFrom(builder, cis); 112 namespaces = builder.getNamespaceList(); 113 return this; 114 } 115}