com.twosigma.beakerx.kernel.PathToJar.java Source code

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Here is the source code for com.twosigma.beakerx.kernel.PathToJar.java

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/*
 *  Copyright 2017 TWO SIGMA OPEN SOURCE, LLC
 *
 *  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.twosigma.beakerx.kernel;

import org.apache.commons.lang3.StringUtils;

import java.io.File;
import java.net.URL;
import java.nio.file.Paths;

import static com.twosigma.beakerx.util.Preconditions.checkNotNull;
import static org.apache.commons.lang3.builder.EqualsBuilder.reflectionEquals;
import static org.apache.commons.lang3.builder.HashCodeBuilder.reflectionHashCode;
import static org.apache.commons.lang3.builder.ToStringBuilder.reflectionToString;

public class PathToJar {
    private URL url;
    private String canonicalPath;

    public PathToJar(final String path) {
        checkNotNull(path);
        File file = getFile(path);
        try {
            canonicalPath = file.getCanonicalPath();
            this.url = Paths.get(canonicalPath).toUri().toURL();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public String getPath() {
        return canonicalPath;
    }

    public URL getUrl() {
        return url;
    }

    private File getFile(String path) {
        File file = Paths.get(path).toFile();
        if (!file.exists()) {
            throw new RuntimeException("Path does not exist: " + path);
        }
        return file;
    }

    private void checkNotWhitespaces(String path) {
        if (StringUtils.containsWhitespace(path)) {
            throw new RuntimeException("Can not create path with whitespace.");
        }
    }

    @Override
    public boolean equals(Object o) {
        return reflectionEquals(this, o);
    }

    @Override
    public int hashCode() {
        return reflectionHashCode(this);
    }

    @Override
    public String toString() {
        return reflectionToString(this);
    }
}