1 /** 2 * Copyright (c) 2008, http://www.snakeyaml.org 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package org.yaml.snakeyaml.nodes; 17 18 import java.util.List; 19 20 import org.yaml.snakeyaml.error.Mark; 21 22 /** 23 * Represents a map. 24 * <p> 25 * A map is a collection of unsorted key-value pairs. 26 * </p> 27 */ 28 public class MappingNode extends CollectionNode { 29 private List<NodeTuple> value; 30 private boolean merged = false; 31 MappingNode(Tag tag, boolean resolved, List<NodeTuple> value, Mark startMark, Mark endMark, Boolean flowStyle)32 public MappingNode(Tag tag, boolean resolved, List<NodeTuple> value, Mark startMark, 33 Mark endMark, Boolean flowStyle) { 34 super(tag, startMark, endMark, flowStyle); 35 if (value == null) { 36 throw new NullPointerException("value in a Node is required."); 37 } 38 this.value = value; 39 this.resolved = resolved; 40 } 41 MappingNode(Tag tag, List<NodeTuple> value, Boolean flowStyle)42 public MappingNode(Tag tag, List<NodeTuple> value, Boolean flowStyle) { 43 this(tag, true, value, null, null, flowStyle); 44 } 45 46 @Override getNodeId()47 public NodeId getNodeId() { 48 return NodeId.mapping; 49 } 50 51 /** 52 * Returns the entries of this map. 53 * 54 * @return List of entries. 55 */ getValue()56 public List<NodeTuple> getValue() { 57 return value; 58 } 59 setValue(List<NodeTuple> merge)60 public void setValue(List<NodeTuple> merge) { 61 value = merge; 62 } 63 setOnlyKeyType(Class<? extends Object> keyType)64 public void setOnlyKeyType(Class<? extends Object> keyType) { 65 for (NodeTuple nodes : value) { 66 nodes.getKeyNode().setType(keyType); 67 } 68 } 69 setTypes(Class<? extends Object> keyType, Class<? extends Object> valueType)70 public void setTypes(Class<? extends Object> keyType, Class<? extends Object> valueType) { 71 for (NodeTuple nodes : value) { 72 nodes.getValueNode().setType(valueType); 73 nodes.getKeyNode().setType(keyType); 74 } 75 } 76 77 @Override toString()78 public String toString() { 79 String values; 80 StringBuilder buf = new StringBuilder(); 81 for (NodeTuple node : getValue()) { 82 buf.append("{ key="); 83 buf.append(node.getKeyNode()); 84 buf.append("; value="); 85 if (node.getValueNode() instanceof CollectionNode) { 86 // to avoid overflow in case of recursive structures 87 buf.append(System.identityHashCode(node.getValueNode())); 88 } else { 89 buf.append(node.toString()); 90 } 91 buf.append(" }"); 92 } 93 values = buf.toString(); 94 return "<" + this.getClass().getName() + " (tag=" + getTag() + ", values=" + values + ")>"; 95 } 96 97 /** 98 * @param merged 99 * - true if map contains merge node 100 */ setMerged(boolean merged)101 public void setMerged(boolean merged) { 102 this.merged = merged; 103 } 104 105 /** 106 * @return true if map contains merge node 107 */ isMerged()108 public boolean isMerged() { 109 return merged; 110 } 111 } 112