com.dotosoft.dot4command.commands.CallTemplateCommand.java Source code

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Here is the source code for com.dotosoft.dot4command.commands.CallTemplateCommand.java

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/*
   Copyright 2015 Denis Prasetio
       
   Licensed 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 com.dotosoft.dot4command.commands;

import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang.text.StrSubstitutor;

import com.dotosoft.dot4command.base.ModifierHandler;
import com.dotosoft.dot4command.chain.Command;
import com.dotosoft.dot4command.chain.Processing;
import com.dotosoft.dot4command.impl.ChainBase;
import com.google.common.base.Splitter;

public class CallTemplateCommand<K extends String, V extends Object, C extends Map<K, V>>
        extends LookupCommand<K, V, C> {

    private Map keyMap;

    @Override
    public Processing onExecute(C context) throws Exception {
        Command<K, V, C> command = getCommand(context);
        if (command != null) {
            Command newTemp = (Command) command.clone();
            modifyKeyMap(newTemp);

            Processing result = newTemp.execute(context);
            newTemp = null;
            System.gc();
            if (isIgnoreExecuteResult()) {
                return Processing.FINISHED;
            }
            return result;
        }
        return Processing.FINISHED;
    }

    private void modifyKeyMap(Command newTemp) {
        ModifierHandler modifier = new ModifierHandler() {
            StrSubstitutor sub;

            @Override
            public void modifier(Object... params) {
                Command valueCommand = (Command) params[0];
                Map valuesMap = (Map) params[1];
                sub = new StrSubstitutor(valuesMap);
                modifyField(valueCommand);
            }

            private void modifyField(Command valueCommand) {
                List<Field> allFields = listAllFields(valueCommand);
                for (Field field : allFields) {
                    try {
                        Object value = getProperty(valueCommand, field.getName());
                        if (value instanceof String) {
                            setProperty(valueCommand, field.getName(), sub.replace(value));
                        }
                    } catch (Exception ex) {
                    }
                }

                if (valueCommand instanceof ChainBase) {
                    ChainBase chainBase = (ChainBase) valueCommand;
                    List<Command<K, V, C>> listOfCommands = chainBase.getCommands();
                    for (Command comm : listOfCommands) {
                        modifyField(comm);
                    }
                }
            }

            private List<Field> listAllFields(Object objReflection) {
                List<Field> fieldList = new ArrayList<Field>();
                Class tmpClass = objReflection.getClass();
                while (tmpClass != null) {
                    fieldList.addAll(Arrays.asList(tmpClass.getDeclaredFields()));
                    tmpClass = tmpClass.getSuperclass();
                }
                return fieldList;
            }
        };

        newTemp.modify(modifier, newTemp, keyMap);
    }

    public void setKeyMap(String inputString) {
        inputString = inputString.replaceAll("\n", "").replaceAll("\r", "").replaceAll(" ", "");
        keyMap = Splitter.on(",").withKeyValueSeparator(":").split(inputString);
    }
}