com.sangupta.codefix.RightTrim.java Source code

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Here is the source code for com.sangupta.codefix.RightTrim.java

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/**
 *
 * codefix - Perform minor code refactoring tasks
 * Copyright (c) 2014, Sandeep Gupta
 * 
 * http://sangupta.com/projects/codefix
 * 
 * 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.sangupta.codefix;

import io.airlift.command.Command;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.LineIterator;
import org.apache.commons.lang3.StringUtils;

@Command(name = "rtrim", description = "Remove trailing white-spaces")
public class RightTrim extends AbstractCodeFixCommand {

    protected String processEachFile(File file) throws IOException {
        final List<String> lines = new ArrayList<String>();
        LineIterator iterator = FileUtils.lineIterator(file);
        boolean modified = false;
        while (iterator.hasNext()) {
            String line = iterator.next();

            String newline = StringUtils.stripEnd(line, null);
            if (line.length() != newline.length()) {
                modified = true;
            }

            lines.add(newline);
        }

        FileUtils.writeLines(file, lines);
        return String.valueOf(modified);
    }

}