Synnefo » Pithos

/*

 * Copyright 2011 GRNET S.A. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or

 * without modification, are permitted provided that the following

 * conditions are met:

 *

 *   1. Redistributions of source code must retain the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer.

 *

 *   2. Redistributions in binary form must reproduce the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer in the documentation and/or other materials

 *      provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * The views and conclusions contained in the software and

 * documentation are those of the authors and should not be

 * interpreted as representing official policies, either expressed

 * or implied, of GRNET S.A.

 */

package gr.grnet.pithos.web.client.foldertree;

import com.google.gwt.http.client.Header;

import com.google.gwt.http.client.Response;

import com.google.gwt.i18n.client.DateTimeFormat;

import com.google.gwt.i18n.client.DateTimeFormat.PredefinedFormat;

import com.google.gwt.i18n.client.NumberFormat;

import com.google.gwt.json.client.JSONObject;

import com.google.gwt.json.client.JSONParser;

import com.google.gwt.json.client.JSONValue;

import java.io.StringWriter;

import java.security.Key;

import java.util.Date;

import java.util.HashSet;

import java.util.Set;

public class File extends Resource {

    private String name;

    private String hash;

    private int version;

    private long bytes;

    private String contentType;

    private Date lastModified;

    private String modifiedBy;

    private Date versionTimestamp;

    private String path;

    private String owner;

    private boolean inTrash;

    private String container;

    private Folder parent;

    private Set<String> tags = new HashSet<String>();

    public String getContentType() {

        return contentType;

    }

    public String getHash() {

        return hash;

    }

    public Date getLastModified() {

        return lastModified;

    }

    public String getModifiedBy() {

        return modifiedBy;

    }

    public String getName() {

        return name;

    }

    public int getVersion() {

        return version;

    }

    public Date getVersionTimestamp() {

        return versionTimestamp;

    }

    public String getUri() {

        return "/" + container + "/" + path;

    }

    public String getOwner() {

        return owner;

    }

    public String getPath() {

        return path;

    }

    public long getBytes() {

        return bytes;

    }

    public String getSizeAsString() {

        NumberFormat nf = NumberFormat.getFormat("######.#");

        if (bytes < 1024)

            return String.valueOf(bytes) + " B";

        else if (bytes < 1024 * 1024)

            return nf.format(Double.valueOf(bytes)/(1024)) + " KB";

        else if (bytes < 1024 * 1024 * 1024)

            return nf.format(Double.valueOf(bytes)/(1024 * 1024)) + " MB";

        return nf.format(Double.valueOf(bytes)/(1024 * 1024 * 1024)) + " GB";

    }

    public boolean isShared() {

        return false;

    }

    public boolean isInTrash() {

        return inTrash;

    }

    public void populate(Folder parent, JSONObject o, String container) {

        this.parent = parent;

        path = unmarshallString(o, "name");

        if (path.contains("/"))

            name = path.substring(path.lastIndexOf("/") + 1, path.length()); //strip the prefix

        else

            name = path;

        hash = unmarshallString(o, "hash");

        bytes = unmarshallLong(o, "bytes");

        version = unmarshallInt(o, "version");

        contentType = unmarshallString(o, "content_type");

        lastModified = unmarshallDate(o, "last_modified");

        modifiedBy = unmarshallString(o, "modified_by");

        versionTimestamp = unmarshallDate(o, "version_timestamp");

        this.container = container;

        for (String key : o.keySet())

            if (key.startsWith("x_object_meta_") && !key.equals("x_object_meta_trash"))

                tags.add(key.substring("x_object_meta_".length()).trim().toLowerCase());

    }

    public boolean equals(Object other) {

        if (other instanceof File) {

            File o = (File) other;

            return name.equals(o.getName());

        }

        return false;

    }

    public int hashCode() {

        return name.hashCode();

    }

    public String getContainer() {

        return container;

    }

    public static File createFromResponse(Response response, File result) {

        result.populate(response);

        return result;

    }

    private void populate(Response response) {

        for (Header h : response.getHeaders()) {

            String header = h.getName();

            if (header.startsWith("X-Object-Meta-") && !header.equals("X-Object-Meta-Trash"))

                tags.add(header.substring("X-Object-Meta-".length()).trim().toLowerCase());

        }

        String header = response.getHeader("X-Object-Meta-Trash");

        if (header != null)

            inTrash = Boolean.valueOf(header);

        else

            inTrash = false;

        JSONValue json = JSONParser.parseStrict(response.getText());

        JSONObject o = json.isObject();

    }

    public Folder getParent() {

        return parent;

    }

    public Set<String> getTags() {

        return tags;

    }

}