1 files changed, 48 insertions, 0 deletions
diff --git a/container-search/src/main/java/com/yahoo/search/query/parser/ParserFactory.java b/container-search/src/main/java/com/yahoo/search/query/parser/ParserFactory.java
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+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.search.query.parser;
+
+import com.yahoo.prelude.query.parser.*;
+import com.yahoo.search.Query;
+import com.yahoo.search.yql.YqlParser;
+
+/**
+ * <p>Implements a factory for {@link Parser}.</p>
+ *
+ * @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen</a>
+ * @since 5.1.4
+ */
+public final class ParserFactory {
+
+    private ParserFactory() {
+        // hide
+    }
+
+    /**
+     * Creates a {@link Parser} appropriate for the given <tt>Query.Type</tt>, providing the Parser with access to
+     * the {@link ParserEnvironment} given.
+     *
+     * @param type        the query type for which to create a Parser
+     * @param environment the environment settings to attach to the Parser
+     * @return the created Parser
+     */
+    public static Parser newInstance(Query.Type type, ParserEnvironment environment) {
+        switch (type) {
+        case ALL:
+            return new AllParser(environment);
+        case ANY:
+            return new AnyParser(environment);
+        case PHRASE:
+            return new PhraseParser(environment);
+        case ADVANCED:
+            return new AdvancedParser(environment);
+        case WEB:
+            return new WebParser(environment);
+        case PROGRAMMATIC:
+            return new ProgrammaticParser();
+        case YQL:
+            return new YqlParser(environment);
+        default:
+            throw new UnsupportedOperationException(type.toString());
+        }
+    }
+}