com.qualogy.qafe.bind.io.FileLocation.java Source code

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Here is the source code for com.qualogy.qafe.bind.io.FileLocation.java

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/**
 * Copyright 2008-2015 Qualogy Solutions B.V.
 *
 * 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.qualogy.qafe.bind.io;

import java.io.File;
import java.io.Serializable;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;

import org.apache.commons.lang.StringUtils;
import org.jibx.runtime.IUnmarshallingContext;

import com.qualogy.qafe.bind.PostProcessing;
import com.qualogy.qafe.bind.orm.jibx.BindException;

public class FileLocation implements PostProcessing, Serializable {

    public final static String SCHEME_HTTP = "http";
    public final static String SCHEME_FILE = "file";
    //public final static String SCHEME_FTP = "ftp";

    public final static String[] SUPPORTED_PROTOCOLS = { SCHEME_FILE, SCHEME_HTTP };

    public final static String COMMON_SCHEME_DELIM = "://";

    protected String location;

    private String root;

    private URI uri;

    private FileLocation() {
        super();
    }

    public FileLocation(String location) {
        this();
        this.location = location;
    }

    public FileLocation(String root, String location) {
        this();
        this.location = location;
        setRoot(root);
    }

    public FileLocation(URI uri) {
        this.uri = uri;
    }

    public String getLocation() {
        return location;
    }

    /**
     * this class takes the root argument if not empty
     * and adds it to this.path
     *
     * protocol http is supported
     *
     * @param root
     * @return
     */
    // CHECKSTYLE.OFF: CyclomaticComplexity
    public URI toURI() {
        if (this.uri == null) {
            String path = location;

            if (!StringUtils.isEmpty(root) && !root.endsWith("/") && !root.endsWith("\\"))//add File.separator @ end
                root += File.separator;

            path = ((root != null) ? root : "") + ((location != null) ? location : "");

            if (File.separatorChar == '\\') {
                path = path.replace('\\', '/');
            }

            if (path.startsWith(SCHEME_HTTP + COMMON_SCHEME_DELIM)) {
                try {
                    URL url = new URL(path);
                    this.uri = url.toURI();
                } catch (MalformedURLException e) {
                    throw new BindException(e);
                } catch (URISyntaxException e) {
                    throw new BindException(e);
                }
            }
            if (path.startsWith(SCHEME_FILE)) {
                try {
                    uri = new URI(path);
                } catch (URISyntaxException e) {
                    throw new BindException(e);
                }
            } else {
                File file = StringUtils.isEmpty(root) ? new File(((location != null) ? location : ""))
                        : new File(root, ((location != null) ? location : ""));
                if (file.exists()) {
                    this.uri = file.toURI();
                }
            }
        }
        return this.uri;
    }
    // CHECKSTYLE.ON: CyclomaticComplexity

    public static URI toURI(String location) {
        return new FileLocation(location).toURI();
    }

    public boolean isEmpty() {
        return (this.getLocation() == null);
    }

    /**
     * root string will be added if this location is not null and
     * does not start with file or http protocol
     * @param root
     */
    public void setRoot(String root) {
        boolean setRoot = true;
        if (this.getLocation() != null) {
            for (int i = 0; i < SUPPORTED_PROTOCOLS.length; i++) {
                if (this.getLocation().startsWith(SUPPORTED_PROTOCOLS[i])) {
                    setRoot = false;
                    break;
                }
            }

        }
        if (setRoot)
            this.root = root;
    }

    public String getRoot() {
        return root;
    }

    /**
     * String representation of the uri or location if uri is not set
     */
    public String toString() {
        return uri != null ? uri.toString() : ((toURI() != null) ? toURI().toString() : location);
    }

    public void performPostProcessing() {
        postset(null);
    }

    public void postset(IUnmarshallingContext context) {
        if (context != null)
            setRoot(context.getDocumentName());
    }
}