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1
25
26 package org.snipsnap.snip.label;
27
28 import org.snipsnap.util.StringUtil;
29 import org.snipsnap.snip.Snip;
30 import org.snipsnap.container.Components;
31 import org.snipsnap.app.Application;
32
33 import java.util.*;
34
35
41
42 public class Labels {
43 private Map labels;
44 private String  cache;
45
46 public Labels() {
47 this.labels = new HashMap();
48 }
49
50 public Labels(Snip snip, String labelString) {
51 cache = labelString;
52 deserialize(snip, labelString);
53 }
54
55 public void addLabel(Label label) {
56 cache = null;
60 Map map = (Map) this.labels.get(label.getName());
61 if (map == null) {
62 map = new HashMap();
63 this.labels.put(label.getName(), map);
64 }
65 map.put(label.getValue(), label);
66 }
67
68 public void addLabel(String name, String value) {
69 cache = null;
73 Label label = createDefaultLabel(name, value);
74 addLabel(label);
75 }
76
77 public Label getLabel(String name) {
78 Map map = (Map) this.labels.get(name);
79 if (map == null) return null;
80 Iterator it = map.values().iterator();
81 return it.hasNext() ? (Label) it.next() : null;
82 }
83
84 public Label getLabel(String name, String value) {
85 Map map = (Map) this.labels.get(name);
86 if (map == null) return null;
87 return (Label) map.get(value);
88 }
89
90 public Collection getAll() {
91 Collection result = new ArrayList();
92
93 Iterator iterator = this.labels.values().iterator();
94 while (iterator.hasNext()) {
95 Map map = (Map) iterator.next();
96 result.addAll(map.values());
97 }
98 return result;
99 }
100
101 public Collection getLabels(String type) {
102 ArrayList result = new ArrayList();
103 if (null == type) {
104 return result;
105 }
106
107 Iterator iterator = this.labels.values().iterator();
108 while (iterator.hasNext()) {
109 Map map = (Map) iterator.next();
110 Iterator it = map.values().iterator();
111 while (it.hasNext()) {
112 Label label = (Label) it.next();
113 if (null != label && type.equals(label.getType())) {
114 result.add(label);
115 }
116 }
117 }
118 return result;
119 }
120
121 public void removeLabel(String name, String value) {
122 cache = null;
123 Map map = (Map) labels.get(name);
124 if (map != null) {
125 Label label = (Label) map.get(value);
126 label.remove();
127 map.remove(value);
128 }
129 }
130
131 private Label createDefaultLabel(String name, String value) {
132 Label label = ((LabelManager) Components.getComponent(LabelManager.class)).getDefaultLabel();
133 label.setName(name);
134 label.setValue(value);
135 return label;
136 }
137
138 private Label createLabel(String type, String name, String value) {
139 Label label = ((LabelManager) Components.getComponent(LabelManager.class)).getLabel(type);
141 if (label != null) {
142 label.setName(name);
143 label.setValue(value);
144 }
145 return label;
146 }
147
148 private void deserialize(Snip snip, String labelString) {
149 labels = new HashMap();
150 if (null == labelString || "".equals(labelString)) {
151 return;
152 }
153
154 StringTokenizer tokenizer = new StringTokenizer(labelString, "|");
155 while (tokenizer.hasMoreTokens()) {
156 String labelToken = tokenizer.nextToken();
157 String [] data = StringUtil.split(labelToken, ":");
158 if (data.length >= 3) {
160 String value = data[2];
161 for(int i = 3; i < data.length; i++) {
162 value += ":" + data[i];
163 }
164 Label label = createLabel(data[0], data[1], value);
165 label.setSnip(snip);
166 addLabel(label);
167 } else {
168 System.err.println("Labels: Broken Label: '" + labelToken + "' ignored");
169 }
170 }
171 return;
172 }
173
174 private String serialize() {
175 if (null == this.labels || this.labels.isEmpty()) {
176 return "";
177 }
178
179 StringBuffer linkBuffer = new StringBuffer ();
180 Iterator iterator = this.labels.entrySet().iterator();
181 while (iterator.hasNext()) {
182 Map.Entry entry = (Map.Entry) iterator.next();
183 String name = (String ) entry.getKey();
184 Map map = (Map) entry.getValue();
185 Iterator it = map.values().iterator();
186 while (it.hasNext()) {
187 Label label = (Label) it.next();
188 String type = label.getType();
189 String value = label.getValue();
190 linkBuffer.append(type);
191 linkBuffer.append(":");
192 linkBuffer.append(name);
193 linkBuffer.append(":");
194 linkBuffer.append(value);
195
196 linkBuffer.append("|");
197 }
198 }
199 if (linkBuffer.length() > 0) {
202 linkBuffer.setLength(linkBuffer.length() - 1);
203 }
204 return linkBuffer.toString();
205 }
206
207 public String toString() {
208 return (cache = serialize());
210 }
211 }
212 |
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