com.mgmtp.perfload.perfalyzer.util.PerfAlyzerFile.java Source code

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Here is the source code for com.mgmtp.perfload.perfalyzer.util.PerfAlyzerFile.java

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/*
 * Copyright (c) 2013-2014 mgm technology partners GmbH
 *
 * 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.mgmtp.perfload.perfalyzer.util;

import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

import java.io.File;
import java.nio.file.Path;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import static com.google.common.base.Joiner.on;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.Lists.newArrayListWithExpectedSize;
import static org.apache.commons.io.FilenameUtils.getExtension;
import static org.apache.commons.io.FilenameUtils.wildcardMatch;

/**
 * @author rnaegele
 */
public class PerfAlyzerFile implements Comparable<PerfAlyzerFile> {

    /**
     * Regular expression that matches a part of a perfAlyzer file. File name parts are enclosed by
     * square brackets, e. g. {@code [perfmon][cpu_X].out}.
     */
    private static final Pattern PATTERN_FILE_NAME_PARTS = Pattern.compile("\\[([^]]+)\\]");
    private static final Pattern PATTERN_MARKER = Pattern.compile("\\{([^}]+)\\}");

    private final String path;
    private String extension;
    private final List<String> fileNameParts;
    private String marker;

    private PerfAlyzerFile(final String path, final String extension, final List<String> fileNameParts,
            final String marker) {
        this.path = path;
        this.extension = extension;
        this.fileNameParts = newArrayList(fileNameParts);
        this.marker = marker;
    }

    public static PerfAlyzerFile create(final File file) {
        checkState(!file.isAbsolute(), "File must not be absolute: %s", file);

        String fileName = file.getName();

        List<String> parts = newArrayListWithExpectedSize(3);
        List<String> partsWithBrackets = newArrayListWithExpectedSize(3);

        Matcher m = PATTERN_FILE_NAME_PARTS.matcher(fileName);
        while (m.find()) {
            partsWithBrackets.add(m.group());
            parts.add(m.group(1));
        }
        m = PATTERN_MARKER.matcher(fileName);
        String marker = m.find() ? m.group(1) : null;

        return new PerfAlyzerFile(FilenameUtils.getPath(file.getPath()), getExtension(fileName), parts, marker);
    }

    public PerfAlyzerFile copy() {
        return new PerfAlyzerFile(path, extension, newArrayList(fileNameParts), marker);
    }

    /**
     * @return the file
     */
    public File getFile() {
        String baseName = '[' + on("][").join(fileNameParts) + ']';
        if (marker != null) {
            baseName += "{" + marker + '}';
        }
        return new File(path,
                baseName + (extension.equals(StringUtils.EMPTY) ? StringUtils.EMPTY : '.' + extension));
    }

    public Path getPath() {
        return getFile().toPath();
    }

    public PerfAlyzerFile addFileNamePart(final String part) {
        if (part != null) {
            fileNameParts.add(part);
        }
        return this;
    }

    public PerfAlyzerFile addFileNamePart(final Iterable<String> parts) {
        for (String part : parts) {
            fileNameParts.add(part);
        }
        return this;
    }

    public PerfAlyzerFile addFileNamePart(final int index, final String part) {
        fileNameParts.add(index, part);
        return this;
    }

    public PerfAlyzerFile removeFileNamePart(final int index) {
        fileNameParts.remove(index);
        return this;
    }

    public PerfAlyzerFile removeFileNamePart(final String wildcard) {
        for (Iterator<String> it = fileNameParts.iterator(); it.hasNext();) {
            if (wildcardMatch(it.next(), wildcard)) {
                it.remove();
                break;
            }
        }
        return this;
    }

    public PerfAlyzerFile setExtension(final String extension) {
        this.extension = extension;
        return this;
    }

    /**
     * @return the fileNameParts
     */
    public List<String> getFileNameParts() {
        return fileNameParts;
    }

    /**
     * @return the marker
     */
    public String getMarker() {
        return marker;
    }

    public void setMarker(final String marker) {
        this.marker = marker;
    }

    @Override
    public int compareTo(final PerfAlyzerFile o) {
        return getFile().compareTo(o.getFile());
    }

    @Override
    public String toString() {
        return ToStringBuilder.reflectionToString(this, ToStringStyle.SHORT_PREFIX_STYLE);
    }
}