/*
 * 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.commons.lang;

import junit.framework.TestCase;

public class EntitiesPerformanceTest extends TestCase {
    private int COUNT = 10000;
    private int STRING_LENGTH = 1000;

    private static String stringWithUnicode;
    private static String stringWithEntities;
    private static Entities treeEntities;
    private static Entities hashEntities;
    private static Entities arrayEntities;
    private static Entities binaryEntities;
    private static Entities primitiveEntities;
    private static Entities lookupEntities;

    public EntitiesPerformanceTest(String name) {
        super(name);
    }

    public void setUp() {
        if (stringWithUnicode == null) {
            StringBuffer buf = new StringBuffer(STRING_LENGTH);
            for (int i = 0; i < STRING_LENGTH / 5; ++i) {
                buf.append("xxxx");
                char ch = isovalue(i);
                buf.append(ch);
            }
            stringWithUnicode = buf.toString();
            stringWithEntities = Entities.HTML40.unescape(stringWithUnicode);
        }
    }

    private char html40value(int i) {
        String entityValue = Entities.HTML40_ARRAY[i % Entities.HTML40_ARRAY.length][1];
        char ch = (char) Integer.parseInt(entityValue);
        return ch;
    }

    private char isovalue(int i) {
        String entityValue = Entities.ISO8859_1_ARRAY[i % Entities.ISO8859_1_ARRAY.length][1];
        char ch = (char) Integer.parseInt(entityValue);
        return ch;
    }

    public void testBuildHash() throws Exception {
        for (int i = 0; i < COUNT; ++i) {
            hashEntities = build(new Entities.HashEntityMap());
        }
    }


    public void testBuildTree() throws Exception {
        for (int i = 0; i < COUNT; ++i) {
            treeEntities = build(new Entities.TreeEntityMap());
        }
    }

    public void testBuildArray() throws Exception {
        for (int i = 0; i < COUNT; ++i) {
            arrayEntities = build(new Entities.ArrayEntityMap());
        }
    }

    public void testBuildBinary() throws Exception {
        for (int i = 0; i < COUNT; ++i) {
            binaryEntities = build(new Entities.BinaryEntityMap());
        }
    }

    public void testBuildPrimitive() throws Exception {
        for (int i = 0; i < COUNT; ++i) {
            buildPrimitive();
        }
    }

    private void buildPrimitive()
    {
        primitiveEntities = build(new Entities.PrimitiveEntityMap());
    }

    public void testBuildLookup() throws Exception {
        for (int i = 0; i < COUNT; ++i) {
            buildLookup();
        }
    }

    private void buildLookup()
    {
        lookupEntities = build(new Entities.LookupEntityMap());
    }

    private Entities build(Entities.EntityMap intMap) {
        Entities entities = new Entities(intMap);
        Entities.fillWithHtml40Entities(entities);
        return entities;
    }

    public void testLookupHash() throws Exception {
        lookup(hashEntities);
    }

    public void testLookupTree() throws Exception {
        lookup(treeEntities);
    }

    public void testLookupArray() throws Exception {
        lookup(arrayEntities);
    }

    public void testLookupBinary() throws Exception {
        lookup(binaryEntities);
    }

    public void testLookupPrimitive() throws Exception {
        if (primitiveEntities == null) buildPrimitive();
        lookup(primitiveEntities);
    }

    public void testLookupLookup() throws Exception {
        if (lookupEntities == null) buildLookup();
        lookup(lookupEntities);
    }

    public void testEscapeHash() throws Exception {
        escapeIt(hashEntities);
    }

    public void testEscapeTree() throws Exception {
        escapeIt(treeEntities);
    }

    public void testEscapeArray() throws Exception {
        escapeIt(arrayEntities);
    }

    public void testEscapeBinary() throws Exception {
        escapeIt(binaryEntities);
    }

    public void testEscapePrimitive() throws Exception {
        escapeIt(primitiveEntities);
    }

    public void testEscapeLookup() throws Exception {
        escapeIt(lookupEntities);
    }

    public void testUnescapeHash() throws Exception {
        unescapeIt(hashEntities);
    }

    public void testUnescapeTree() throws Exception {
        unescapeIt(treeEntities);
    }

    public void testUnescapeArray() throws Exception {
        unescapeIt(arrayEntities);
    }

    public void testUnescapeBinary() throws Exception {
        unescapeIt(binaryEntities);
    }

    private void lookup(Entities entities) {
        for (int i = 0; i < COUNT * 1000; ++i) {
            entities.entityName(isovalue(i));
        }
    }

    private void escapeIt(Entities entities) {
        for (int i = 0; i < COUNT; ++i) {
            String escaped = entities.escape(stringWithUnicode);
            assertEquals("xxxx&nbsp;", escaped.substring(0, 10));
        }
    }

    private void unescapeIt(Entities entities) {
        for (int i = 0; i < COUNT; ++i) {
            String unescaped = entities.unescape(stringWithEntities);
            assertEquals("xxxx\u00A0", unescaped.substring(0, 5));
        }
    }


}