com.jaeksoft.searchlib.script.CommandAbstract.java Source code

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Here is the source code for com.jaeksoft.searchlib.script.CommandAbstract.java

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/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2013 Emmanuel Keller / Jaeksoft
 * 
 * http://www.open-search-server.com
 * 
 * This file is part of OpenSearchServer.
 *
 * OpenSearchServer is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 * OpenSearchServer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with OpenSearchServer. 
 *  If not, see <http://www.gnu.org/licenses/>.
 **/

package com.jaeksoft.searchlib.script;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.commons.lang3.StringUtils;

import com.jaeksoft.searchlib.util.RegExpUtils;

public abstract class CommandAbstract {

    private final CommandEnum commandEnum;

    private String[] parameters;

    protected CommandAbstract(CommandEnum commandEnum) {
        this.commandEnum = commandEnum;
        this.parameters = null;
    }

    protected void checkParameters(int count, String... parameters) throws ScriptException {
        this.parameters = parameters;
        if (count == 0)
            return;
        if (parameters == null)
            throwError("Missing parameters");
        if (parameters.length < count)
            throwError("Missing parameter(s)");
        for (int i = 0; i < count; i++)
            if (parameters[i] == null)
                throwError("The parameter is empty: " + (i + 1));
    }

    protected String findPatternFunction(int from, Pattern pattern) {
        String functionParam = null;
        for (int i = from; i < getParameterCount(); i++) {
            String param = getParameterString(i);
            if (StringUtils.isEmpty(param))
                continue;
            Matcher matcher = RegExpUtils.matcher(pattern, param);
            if (matcher.find())
                if (matcher.groupCount() > 0)
                    functionParam = matcher.group(1);
        }
        return functionParam;
    }

    protected boolean findParameter(int from, String parameter) {
        for (int i = from; i < getParameterCount(); i++) {
            String param = getParameterString(i);
            if (StringUtils.isEmpty(param))
                continue;
            if (parameter.equalsIgnoreCase(param))
                return true;
        }
        return false;
    }

    protected String findKeyword(String text, String... keywords) {
        if (keywords == null)
            return null;
        for (String k : keywords)
            if (k.equalsIgnoreCase(text))
                return k;
        return null;
    }

    protected int getParameterCount() {
        return parameters == null ? 0 : parameters.length;
    }

    protected String getParameterString(int pos) {
        if (parameters == null)
            return null;
        if (pos >= parameters.length)
            return null;
        String p = parameters[pos];
        if (p == null)
            return null;
        return p;
    }

    protected Integer getParameterInt(int pos) {
        String s = getParameterString(pos);
        if (StringUtils.isEmpty(s))
            return null;
        return new Integer(s);
    }

    protected Float getParameterFloat(int pos) {
        String s = getParameterString(pos);
        if (StringUtils.isEmpty(s))
            return null;
        return new Float(s);
    }

    protected void throwError(String message) throws ScriptException {
        throw new ScriptException("Command " + commandEnum.name() + " - " + message);
    }

    public abstract void run(ScriptCommandContext context, String id, String... parameters) throws ScriptException;
}