io.wcm.tooling.netbeans.sightly.completion.classLookup.ParsedStatement.java Source code

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Here is the source code for io.wcm.tooling.netbeans.sightly.completion.classLookup.ParsedStatement.java

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/*
 * #%L
 * wcm.io
 * %%
 * Copyright (C) 2014 wcm.io
 * %%
 * 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.
 * #L%
 */
package io.wcm.tooling.netbeans.sightly.completion.classLookup;

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

import org.apache.commons.lang.StringUtils;

/**
 * Wrapper-Class for a Statement which has been parsed. A Statement is a combination of a command, a variable and a value. e.g. data-sly-use.foo=${bar}
 */
public final class ParsedStatement {

    /**
     * Pattern to find statements
     */
    public static final Pattern PATTERN = Pattern
            .compile(".*(data-sly-(use|list))\\.([^\\\"]*)=\\\"(\\$\\{)?'?([^'\\}\\\"]*)'?(.*\\})?\\\"");

    /**
     * The command issued before the usage of the statement (e.g. data-sly-use)
     */
    private final String command;
    /**
     * The variable name (e.g. data-sly-use.VARIABLE)
     */
    private final String variable;
    /**
     * The variable's value (e.g. data-sly-use.variable=${value})
     */
    private final String value;

    private ParsedStatement(String command, String variable, String value) {
        this.command = command;
        this.variable = variable;
        this.value = value;
    }

    /**
     * @param matcher
     * @return Parsed statement
     */
    public static ParsedStatement fromMatcher(Matcher matcher) {
        if (matcher.groupCount() >= 5) {
            String command = matcher.group(1);
            String variable = matcher.group(3);
            String value = matcher.group(5);
            if (StringUtils.isNotBlank(command) && StringUtils.isNotBlank(variable)
                    && StringUtils.isNotBlank(value)) {
                return new ParsedStatement(command, variable, value);
            }
        }
        return null;
    }

    public String getCommand() {
        return command;
    }

    public String getVariable() {
        return variable;
    }

    public String getValue() {
        return value;
    }

}