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5d10d135 ASL |
1 | /******************************************************************************* |
2 | * Copyright (c) 2009, 2010 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Alvaro Sanchez-Leon (alvsan09@gmail.com) - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | package org.eclipse.linuxtools.lttng.model; | |
13 | ||
14 | import java.util.Collection; | |
15 | import java.util.HashMap; | |
16 | import java.util.Map; | |
17 | ||
b12f4544 | 18 | import org.eclipse.linuxtools.lttng.LttngConstants; |
5d10d135 ASL |
19 | import org.eclipse.linuxtools.lttng.TraceDebug; |
20 | import org.eclipse.linuxtools.tmf.event.TmfData; | |
21 | ||
22 | public abstract class LTTngTreeNodeGeneric<E extends LTTngTreeNodeGeneric<E>> | |
23 | extends TmfData implements ILTTngTreeNode<E> { | |
24 | ||
25 | // ======================================================================== | |
26 | // Data | |
27 | // ======================================================================== | |
28 | private final Long fid; | |
29 | private final Object ftype; | |
30 | private final Object fvalue; | |
31 | protected final Map<Long, E> fchildren = new HashMap<Long, E>(); | |
32 | protected final Map<String, E> fchildrenByName = new HashMap<String, E>(); | |
33 | protected final Map<String, Object> fattributesByName = new HashMap<String, Object>(); | |
34 | private E fparent = null; | |
35 | private final String fname; | |
36 | private Long idCount = 0L; | |
37 | ||
38 | // ======================================================================== | |
39 | // Constructors | |
40 | // ======================================================================== | |
41 | /** | |
42 | * @param id | |
43 | * @param parent | |
44 | * @param name | |
45 | * @param value | |
46 | */ | |
47 | public LTTngTreeNodeGeneric(Long id, E parent, String name, | |
48 | Object value) { | |
49 | fid = id; | |
50 | fparent = parent; | |
51 | fname = name; | |
52 | ||
53 | if (value != null) { | |
54 | fvalue = value; | |
55 | ftype = fvalue.getClass(); | |
56 | } else { | |
57 | fvalue = this; | |
58 | ftype = this.getClass(); | |
59 | } | |
60 | } | |
61 | ||
62 | /** | |
63 | * @param id | |
64 | * @param parent | |
65 | * @param name | |
66 | */ | |
67 | public LTTngTreeNodeGeneric(Long id, E parent, String name) { | |
68 | this(id, parent, name, null); | |
69 | } | |
70 | ||
71 | /** | |
72 | * When parent is not know just yet | |
73 | * | |
74 | * @param id | |
75 | * @param type | |
76 | * @param name | |
77 | */ | |
78 | public LTTngTreeNodeGeneric(Long id, String name, Object value) { | |
79 | this(id, null, name, value); | |
80 | } | |
81 | ||
82 | // ======================================================================== | |
83 | // Methods | |
84 | // ======================================================================== | |
85 | ||
86 | /* | |
87 | * (non-Javadoc) | |
88 | * | |
89 | * @see org.eclipse.linuxtools.lttng.control.ILTTngAnalysisResource#getId() | |
90 | */ | |
d4011df2 | 91 | @Override |
5d10d135 ASL |
92 | public Long getId() { |
93 | return fid; | |
94 | } | |
95 | ||
96 | /* | |
97 | * (non-Javadoc) | |
98 | * | |
99 | * @see | |
100 | * org.eclipse.linuxtools.lttng.control.ILTTngAnalysisResource#getType() | |
101 | */ | |
d4011df2 | 102 | @Override |
5d10d135 ASL |
103 | public Object getType() { |
104 | return ftype; | |
105 | } | |
106 | ||
107 | /* | |
108 | * (non-Javadoc) | |
109 | * | |
110 | * @see | |
111 | * org.eclipse.linuxtools.lttng.control.ILTTngAnalysisResource#getChildByName | |
112 | * () | |
113 | */ | |
d4011df2 | 114 | @Override |
5d10d135 ASL |
115 | public E getChildByName(String name) { |
116 | E child = null; | |
117 | if (name != null) { | |
118 | child = fchildrenByName.get(name); | |
119 | } | |
120 | return child; | |
121 | } | |
122 | ||
123 | /** | |
124 | * @param child | |
125 | */ | |
126 | public void addChild(E child) { | |
127 | if (child != null) { | |
128 | Long id = child.getId(); | |
129 | if (id != null) { | |
130 | if (fchildren.containsKey(id) && fchildren.get(id) != child) { | |
9c4eb5f7 | 131 | TraceDebug.debug("Replaced child " + id + " for: " + child); //$NON-NLS-1$//$NON-NLS-2$ |
5d10d135 ASL |
132 | } |
133 | fchildren.put(id, child); | |
134 | fchildrenByName.put(child.getName(), child); | |
135 | } | |
136 | } | |
137 | ||
138 | return; | |
139 | } | |
140 | ||
141 | /** | |
142 | * @param child | |
143 | */ | |
144 | public void removeChild(E child) { | |
145 | if (child != null) { | |
146 | Long id = child.getId(); | |
147 | if (id != null) { | |
148 | E childToRemove = fchildren.remove(id); | |
149 | if (childToRemove != null) { | |
150 | fchildrenByName.remove(childToRemove.getName()); | |
151 | } | |
152 | } | |
153 | } | |
154 | } | |
155 | ||
156 | /* | |
157 | * (non-Javadoc) | |
158 | * | |
159 | * @see org.eclipse.linuxtools.lttng.model.ILTTngTreeNode#getChildren() | |
160 | */ | |
d4011df2 | 161 | @Override |
5d10d135 ASL |
162 | public abstract E[] getChildren(); |
163 | // { | |
164 | // return (T[]) childrenToArray(fchildren.values(), this.getClass()); | |
165 | // } | |
166 | ||
167 | /** | |
168 | * Convert from generic collection to generic array. An empty array is | |
169 | * provided when no children nodes are defined | |
170 | * | |
171 | * @param collection | |
172 | * @param k | |
173 | * @return | |
174 | */ | |
175 | @SuppressWarnings("unchecked") | |
176 | protected E[] childrenToArray(Collection<E> collection, Class<? extends E> k) { | |
177 | // check entries | |
178 | if (collection == null || k == null) { | |
179 | return null; | |
180 | } | |
181 | ||
182 | int size = collection.size(); | |
183 | ||
184 | // unchecked cast | |
185 | E[] childrenArray = (E[]) java.lang.reflect.Array.newInstance(k, size); | |
186 | int i = 0; | |
187 | for (E item : collection) { | |
188 | childrenArray[i++] = item; | |
189 | } | |
190 | ||
191 | return childrenArray; | |
192 | } | |
193 | ||
194 | /* | |
195 | * (non-Javadoc) | |
196 | * | |
197 | * @see | |
198 | * org.eclipse.linuxtools.lttng.control.ILTTngAnalysisResource#getChildById | |
199 | * (java.lang.Long) | |
200 | */ | |
d4011df2 | 201 | @Override |
5d10d135 ASL |
202 | public E getChildById(Long id) { |
203 | if (id == null) | |
204 | return null; | |
205 | return fchildren.get(id); | |
206 | } | |
207 | ||
208 | ||
209 | /* | |
210 | * (non-Javadoc) | |
211 | * | |
212 | * @see | |
213 | * org.eclipse.linuxtools.lttng.control.ILTTngAnalysisResource#getParent() | |
214 | */ | |
d4011df2 | 215 | @Override |
5d10d135 ASL |
216 | public E getParent() { |
217 | return fparent; | |
218 | } | |
219 | ||
220 | /** | |
221 | * @param parent | |
222 | */ | |
223 | public void setParent(E parent) { | |
224 | fparent = parent; | |
225 | } | |
226 | ||
227 | /* | |
228 | * (non-Javadoc) | |
229 | * | |
230 | * @see | |
231 | * org.eclipse.linuxtools.lttng.control.ILTTngAnalysisResource#hasChildren() | |
232 | */ | |
d4011df2 | 233 | @Override |
5d10d135 ASL |
234 | public boolean hasChildren() { |
235 | if (fchildren.size() > 0) { | |
236 | return true; | |
237 | } | |
238 | return false; | |
239 | } | |
240 | ||
241 | /* | |
242 | * (non-Javadoc) | |
243 | * | |
244 | * @see | |
245 | * org.eclipse.linuxtools.lttng.control.ILTTngAnalysisResource#getName() | |
246 | */ | |
d4011df2 | 247 | @Override |
5d10d135 ASL |
248 | public String getName() { |
249 | return fname; | |
250 | } | |
251 | ||
252 | /* | |
253 | * (non-Javadoc) | |
254 | * | |
255 | * @see | |
256 | * org.eclipse.linuxtools.lttng.control.ILTTngAnalysisResource#getPath() | |
257 | */ | |
d4011df2 | 258 | @Override |
5d10d135 | 259 | public String getPath() { |
9c4eb5f7 | 260 | return getPath(this, ""); //$NON-NLS-1$ |
5d10d135 ASL |
261 | } |
262 | ||
263 | /** | |
264 | * Obtaining the path recursively up to the related parents until no parent | |
265 | * is found | |
266 | * | |
267 | * @param child | |
268 | * @param ipath | |
269 | * @return | |
270 | */ | |
271 | private String getPath(LTTngTreeNodeGeneric<E> child, | |
272 | String ipath) { | |
273 | String path = ipath; | |
274 | if (ipath != null) { | |
275 | if (child == null) { | |
276 | return ipath; | |
277 | } else { | |
278 | E parent = child.getParent(); | |
9c4eb5f7 | 279 | path = getPath(parent, "/" + child.getName() + ipath); //$NON-NLS-1$ |
5d10d135 ASL |
280 | } |
281 | } | |
282 | ||
283 | return path; | |
284 | } | |
285 | ||
286 | /* | |
287 | * (non-Javadoc) | |
288 | * | |
289 | * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class) | |
290 | */ | |
d4011df2 | 291 | @Override |
5d10d135 ASL |
292 | @SuppressWarnings("rawtypes") |
293 | public Object getAdapter(Class clazz) { | |
294 | if (clazz == ftype) { | |
295 | return fvalue; | |
296 | } | |
297 | return null; | |
298 | } | |
299 | ||
300 | /* | |
301 | * (non-Javadoc) | |
302 | * | |
303 | * @see org.eclipse.linuxtools.lttng.model.ILTTngTreeNode#getValue() | |
304 | */ | |
d4011df2 | 305 | @Override |
5d10d135 ASL |
306 | public Object getValue() { |
307 | return fvalue; | |
308 | } | |
309 | ||
310 | /* | |
311 | * (non-Javadoc) | |
312 | * | |
313 | * @see org.eclipse.linuxtools.lttng.model.ILTTngTreeNode#getNextUniqueId() | |
314 | */ | |
d4011df2 | 315 | @Override |
5d10d135 | 316 | public synchronized Long getNextUniqueId() { |
b12f4544 FC |
317 | ++idCount; |
318 | if (idCount > LttngConstants.MAX_NUMBER_OF_TRACES_ID) { | |
319 | idCount = 0L; | |
320 | } | |
321 | return idCount | LttngConstants.STATS_TRACE_NAME_ID; | |
5d10d135 ASL |
322 | } |
323 | ||
324 | /* | |
325 | * (non-Javadoc) | |
326 | * | |
327 | * @see | |
328 | * org.eclipse.linuxtools.lttng.model.ILTTngTreeNode#getAttribute(java.lang | |
329 | * .String) | |
330 | */ | |
d4011df2 | 331 | @Override |
5d10d135 ASL |
332 | @SuppressWarnings("unchecked") |
333 | public <T> T getAttribute(String key, Class<T> type) { | |
334 | if (key != null) { | |
335 | Object value = fattributesByName.get(key); | |
336 | if (value.getClass().isAssignableFrom(type)) { | |
337 | return (T) value; | |
338 | } | |
339 | } | |
340 | ||
341 | return null; | |
342 | } | |
343 | ||
344 | /* | |
345 | * (non-Javadoc) | |
346 | * | |
347 | * @see | |
348 | * org.eclipse.linuxtools.lttng.model.ILTTngTreeNode#addAttribute(java.lang | |
349 | * .String, java.lang.Object) | |
350 | */ | |
d4011df2 | 351 | @Override |
5d10d135 ASL |
352 | public boolean addAttribute(String key, Object value) { |
353 | // validate | |
354 | if (key == null || value == null) { | |
355 | return false; | |
356 | } | |
357 | ||
358 | fattributesByName.put(key, value); | |
359 | return true; | |
360 | } | |
361 | ||
362 | /* | |
363 | * (non-Javadoc) | |
364 | * | |
365 | * @see org.eclipse.linuxtools.tmf.event.TmfData#isNullRef() | |
366 | */ | |
550d787e | 367 | @Override |
5d10d135 ASL |
368 | public boolean isNullRef() { |
369 | return false; | |
370 | } | |
371 | } |