/*
 * 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.jasper.tagplugins.jstl.core;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.jasper.Constants;
import org.apache.jasper.compiler.tagplugin.TagPluginContext;

/**
 * Simple TagPluginContext implementation for test purpose
 * 
 * @author Sheldon Shao (XShao@ebay.com)
 */
public class SimpleTagPluginContext implements TagPluginContext {

    private boolean scriptless = false;

    private HashMap<String, String> attributes = new HashMap<String, String>();

    private boolean dontUseTagPlugin = false;

    private boolean isTagFile = false;

    private HashMap<String, Object> pluginAttributes = new HashMap<String, Object>();

    private TagPluginContext parentContext;

    private List<String> imports = new ArrayList<String>(4);

    private Map<String, String> declarations = new HashMap<String, String>();

    private String body = "";

    /*
     * Sequence number for temporary variables.
     */
    private int tempSequenceNumber = 0;

    /**
     * Script let code
     */
    private StringBuilder code = new StringBuilder();

    @Override
    public boolean isScriptless() {
        return scriptless;
    }

    @Override
    public boolean isAttributeSpecified(String attribute) {
        return attributes.containsKey(attribute);
    }

    @Override
    public String getTemporaryVariableName() {
        return Constants.TEMP_VARIABLE_NAME_PREFIX + (tempSequenceNumber++);
    }

    @Override
    public void generateImport(String s) {
        imports.add(s);
    }

    @Override
    public void generateDeclaration(String id, String text) {
        declarations.put(id, text);
    }

    @Override
    public void generateJavaSource(String s) {
        code.append(s);
    }

    @Override
    public boolean isConstantAttribute(String attribute) {
        return attributes.containsKey(attribute);
    }

    @Override
    public String getConstantAttribute(String attribute) {
        return attributes.get(attribute);
    }

    @Override
    public void generateAttribute(String attribute) {
        code.append(attributes.get(attribute));
    }

    @Override
    public void generateBody() {
        code.append(body);
    }

    @Override
    public void dontUseTagPlugin() {
        dontUseTagPlugin = true;
    }

    @Override
    public TagPluginContext getParentContext() {
        return parentContext;
    }

    @Override
    public void setPluginAttribute(String key, Object value) {
        pluginAttributes.put(key, value);
    }

    @Override
    public Object getPluginAttribute(String key) {
        return pluginAttributes.get(key);
    }

    @Override
    public boolean isTagFile() {
        return isTagFile;
    }

    public void setTagFile(boolean isTagFile) {
        this.isTagFile = isTagFile;
    }

    /**
     * Return the status of "dontUseTagPlugin"
     * 
     * @return the status of "dontUseTagPlugin"
     */
    public boolean isDontUseTagPlugin() {
        return dontUseTagPlugin;
    }

    /**
     * Return all imports added by tagPlugins
     */
    public List<String> getImports() {
        return imports;
    }

    public void setBody(String body) {
        this.body = body;
    }

    public String getBody() {
        return body;
    }

    /**
     * Add attribute
     * 
     * @param attribute
     *            Attribute Name
     * @param value
     *            Value
     */
    public void addAttribute(String attribute, String value) {
        attributes.put(attribute, value);
    }

    public String getCode() {
        return code.toString();
    }
}