-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.layer0.utils;\r
-\r
-import java.util.HashMap;\r
-import java.util.Map;\r
-\r
-import org.simantics.db.Resource;\r
-\r
-/**\r
- * Service that creates unique names for resources and\r
- * resource paths. \r
- */\r
-public class NameMap {\r
-\r
- int maxLength;\r
- Map<Resource, String> cache = new HashMap<Resource, String>();\r
- int curId = 0;\r
- \r
- public NameMap(int maxLength) {\r
- this.maxLength = maxLength;\r
- }\r
- \r
- protected boolean isValid(String name) {\r
- return true;\r
- }\r
- \r
- private static final int charA = 65;\r
- private static final int char0 = 48 - 26;\r
- \r
- public void clear() {\r
- curId = 0;\r
- cache.clear();\r
- }\r
- \r
- public String getName(Resource resource) {\r
- String ret = cache.get(resource);\r
- while(ret == null) {\r
- int id = curId++;\r
- byte[] c = new byte[5];\r
- c[0] = '@';\r
- for(int i=0;i<4;++i) {\r
- int lid = id%36;\r
- if(lid < 26)\r
- c[4-i] = (byte)(charA + lid);\r
- else\r
- c[4-i] = (byte)(char0 + lid);\r
- id /= 36;\r
- } \r
- ret = new String(c);\r
- if(isValid(ret))\r
- cache.put(resource, ret);\r
- else\r
- ret = null;\r
- }\r
- return ret;\r
- }\r
- \r
- public static void main(String[] args) {\r
- NameMap m = new NameMap(24);\r
- for(int i=0;i<100;++i)\r
- System.out.println(m.getName(new Resource() {\r
-\r
- @Override\r
- public int getThreadHash() {\r
- return hashCode();\r
- }\r
- \r
- @Override\r
- public long getResourceId() {\r
- return 3;\r
- }\r
-\r
- @Override\r
- public Resource get() {\r
- return this;\r
- }\r
-\r
- @Override\r
- public boolean isPersistent() {\r
- return false;\r
- }\r
- \r
- @Override\r
- public int compareTo(Resource o) {\r
- // TODO Auto-generated method stub\r
- return 0;\r
- }\r
-\r
- @Override\r
- public boolean equalsResource(Resource other) {\r
- return equals(other);\r
- }\r
- \r
- }));\r
- \r
- }\r
- \r
- public String getName(Resource[] resources) {\r
- String ret = "";\r
- for(Resource r : resources)\r
- ret += getName(r);\r
- return ret;\r
- }\r
- \r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.layer0.utils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.simantics.db.Resource;
+
+/**
+ * Service that creates unique names for resources and
+ * resource paths.
+ */
+public class NameMap {
+
+ int maxLength;
+ Map<Resource, String> cache = new HashMap<Resource, String>();
+ int curId = 0;
+
+ public NameMap(int maxLength) {
+ this.maxLength = maxLength;
+ }
+
+ protected boolean isValid(String name) {
+ return true;
+ }
+
+ private static final int charA = 65;
+ private static final int char0 = 48 - 26;
+
+ public void clear() {
+ curId = 0;
+ cache.clear();
+ }
+
+ public String getName(Resource resource) {
+ String ret = cache.get(resource);
+ while(ret == null) {
+ int id = curId++;
+ byte[] c = new byte[5];
+ c[0] = '@';
+ for(int i=0;i<4;++i) {
+ int lid = id%36;
+ if(lid < 26)
+ c[4-i] = (byte)(charA + lid);
+ else
+ c[4-i] = (byte)(char0 + lid);
+ id /= 36;
+ }
+ ret = new String(c);
+ if(isValid(ret))
+ cache.put(resource, ret);
+ else
+ ret = null;
+ }
+ return ret;
+ }
+
+ public static void main(String[] args) {
+ NameMap m = new NameMap(24);
+ for(int i=0;i<100;++i)
+ System.out.println(m.getName(new Resource() {
+
+ @Override
+ public int getThreadHash() {
+ return hashCode();
+ }
+
+ @Override
+ public long getResourceId() {
+ return 3;
+ }
+
+ @Override
+ public Resource get() {
+ return this;
+ }
+
+ @Override
+ public boolean isPersistent() {
+ return false;
+ }
+
+ @Override
+ public int compareTo(Resource o) {
+ // TODO Auto-generated method stub
+ return 0;
+ }
+
+ @Override
+ public boolean equalsResource(Resource other) {
+ return equals(other);
+ }
+
+ }));
+
+ }
+
+ public String getName(Resource[] resources) {
+ String ret = "";
+ for(Resource r : resources)
+ ret += getName(r);
+ return ret;
+ }
+
+}
Code Review / simantics / platform.git / blobdiff