pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / analyzers / smartcn / src / java / org / apache / lucene / analysis / cn / smart / AnalyzerProfile.java

diff --git a/lucene-java-3.5.0/lucene/contrib/analyzers/smartcn/src/java/org/apache/lucene/analysis/cn/smart/AnalyzerProfile.java b/lucene-java-3.5.0/lucene/contrib/analyzers/smartcn/src/java/org/apache/lucene/analysis/cn/smart/AnalyzerProfile.java
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+++ b/lucene-java-3.5.0/lucene/contrib/analyzers/smartcn/src/java/org/apache/lucene/analysis/cn/smart/AnalyzerProfile.java
@@ -0,0 +1,92 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.lucene.analysis.cn.smart;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.Properties;
+
+/**
+ * Manages analysis data configuration for SmartChineseAnalyzer
+ * <p>
+ * SmartChineseAnalyzer has a built-in dictionary and stopword list out-of-box.
+ * </p>
+ * @lucene.experimental
+ */
+public class AnalyzerProfile {
+
+  /**
+   * Global indicating the configured analysis data directory
+   */
+  public static String ANALYSIS_DATA_DIR = "";
+
+  static {
+    init();
+  }
+
+  private static void init() {
+    String dirName = "analysis-data";
+    String propName = "analysis.properties";
+
+    // Try the system property：-Danalysis.data.dir=/path/to/analysis-data
+    ANALYSIS_DATA_DIR = System.getProperty("analysis.data.dir", "");
+    if (ANALYSIS_DATA_DIR.length() != 0)
+      return;
+
+    File[] cadidateFiles = new File[] { new File("./" + dirName),
+        new File("./lib/" + dirName), new File("./" + propName),
+        new File("./lib/" + propName) };
+    for (int i = 0; i < cadidateFiles.length; i++) {
+      File file = cadidateFiles[i];
+      if (file.exists()) {
+        if (file.isDirectory()) {
+          ANALYSIS_DATA_DIR = file.getAbsolutePath();
+        } else if (file.isFile() && getAnalysisDataDir(file).length() != 0) {
+          ANALYSIS_DATA_DIR = getAnalysisDataDir(file);
+        }
+        break;
+      }
+    }
+
+    if (ANALYSIS_DATA_DIR.length() == 0) {
+      // Dictionary directory cannot be found.
+      System.err
+          .println("WARNING: Can not find lexical dictionary directory!");
+      System.err
+          .println("WARNING: This will cause unpredictable exceptions in your application!");
+      System.err
+          .println("WARNING: Please refer to the manual to download the dictionaries.");
+    }
+
+  }
+
+  private static String getAnalysisDataDir(File propFile) {
+    Properties prop = new Properties();
+    try {
+      FileInputStream input = new FileInputStream(propFile);
+      prop.load(input);
+      String dir = prop.getProperty("analysis.data.dir", "");
+      input.close();
+      return dir;
+    } catch (IOException e) {
+    }
+    return "";
+  }
+
+}