add standard_html_strip analyzer that combines the standard analyze…

…r with html_strip char filter.

modules/elasticsearch/src/main/java/org/elasticsearch/index/analysis/AnalysisModule.java

@@ -309,6 +309,8 @@ private static class DefaultProcessor extends AnalysisBinderProcessor {
 
         @Override public void processAnalyzers(AnalyzersBindings analyzersBindings) {
             analyzersBindings.processAnalyzer("standard", StandardAnalyzerProvider.class);
+            analyzersBindings.processAnalyzer("standard_html_strip", StandardHtmlStripAnalyzerProvider.class);
+            analyzersBindings.processAnalyzer("standardHtmlStrip", StandardHtmlStripAnalyzerProvider.class);
             analyzersBindings.processAnalyzer("simple", SimpleAnalyzerProvider.class);
             analyzersBindings.processAnalyzer("stop", StopAnalyzerProvider.class);
             analyzersBindings.processAnalyzer("whitespace", WhitespaceAnalyzerProvider.class);

modules/elasticsearch/src/main/java/org/elasticsearch/index/analysis/StandardHtmlStripAnalyzerProvider.java

@@ -0,0 +1,49 @@
+/*
+ * Licensed to Elastic Search and Shay Banon under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. Elastic Search 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.elasticsearch.index.analysis;
+
+import org.elasticsearch.common.inject.Inject;
+import org.elasticsearch.common.inject.assistedinject.Assisted;
+import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.index.Index;
+import org.elasticsearch.index.settings.IndexSettings;
+
+/**
+ * @author kimchy (shay.banon)
+ */
+public class StandardHtmlStripAnalyzerProvider extends AbstractIndexAnalyzerProvider<CustomAnalyzer> {
+
+    private final CustomAnalyzer analyzer;
+
+    @Inject public StandardHtmlStripAnalyzerProvider(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
+        super(index, indexSettings, name);
+        analyzer = new CustomAnalyzer(new StandardTokenizerFactory(index, indexSettings, name, settings),
+                new CharFilterFactory[]{new HtmlStripCharFilterFactory(index, indexSettings, name, settings)},
+                new TokenFilterFactory[]{
+                        new StandardTokenFilterFactory(index, indexSettings, name, settings),
+                        new LowerCaseTokenFilterFactory(index, indexSettings, name, settings),
+                        new StopTokenFilterFactory(index, indexSettings, name, settings)
+                });
+    }
+
+    @Override public CustomAnalyzer get() {
+        return this.analyzer;
+    }
+}