ca.ualberta.physics.cssdp.domain.file.CachedFile.java Source code

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Here is the source code for ca.ualberta.physics.cssdp.domain.file.CachedFile.java

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/* ============================================================
 * CachedFile.java
 * ============================================================
 * Copyright 2013 University of Alberta
 *
 * 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 ca.ualberta.physics.cssdp.domain.file;

import java.io.File;
import java.util.HashSet;
import java.util.Set;

import javax.persistence.CollectionTable;
import javax.persistence.Column;
import javax.persistence.ElementCollection;
import javax.persistence.Entity;
import javax.persistence.JoinColumn;
import javax.persistence.Table;

import org.hibernate.annotations.Type;
import org.joda.time.DateTimeZone;
import org.joda.time.LocalDateTime;

import ca.ualberta.physics.cssdp.dao.Persistent;

@Entity
@Table(name = "cached_file")
public class CachedFile extends Persistent {

    private static final long serialVersionUID = 1L;

    // @Column(name = "external_key", length = 1024, nullable = false)
    @ElementCollection
    @CollectionTable(name = "cached_file_keys", joinColumns = { @JoinColumn(name = "cached_file_id") })
    @Column(name = "ext_key")
    private Set<String> externalKeys = new HashSet<String>();

    @Column(name = "local_path", length = 1024, nullable = false)
    private String localPath;

    @Column(name = "file_name", length = 1024, nullable = false)
    private String filename;

    @Column(name = "size", nullable = false)
    private long size;

    @Column(name = "md5", length = 32, nullable = false)
    private String md5;

    @Column(name = "file_tstamp")
    @Type(type = "ca.ualberta.physics.cssdp.dao.type.PersistentLocalDateTime")
    private LocalDateTime fileTimestamp;

    @Column(name = "last_accessed")
    @Type(type = "ca.ualberta.physics.cssdp.dao.type.PersistentLocalDateTime")
    private LocalDateTime lastAccessed;

    public CachedFile() {

    }

    public CachedFile(String filename, String md5, File cachedFile) {
        this.md5 = md5;
        this.localPath = cachedFile.getAbsolutePath();
        this.size = cachedFile.length();
        this.fileTimestamp = new LocalDateTime(cachedFile.lastModified());
        this.lastAccessed = new LocalDateTime(DateTimeZone.forID("America/Edmonton"));
        this.filename = filename;
    }

    @Override
    public String _pk() {
        return md5;
    }

    public String getLocalPath() {
        return localPath;
    }

    public void setLocalPath(String localPath) {
        this.localPath = localPath;
    }

    public long getSize() {
        return size;
    }

    public void setSize(long size) {
        this.size = size;
    }

    public LocalDateTime getFileTimestamp() {
        return fileTimestamp;
    }

    public void setFileTimestamp(LocalDateTime fileTimestamp) {
        this.fileTimestamp = fileTimestamp;
    }

    public void setLastAccessed(LocalDateTime lastAccessed) {
        this.lastAccessed = lastAccessed;
    }

    public LocalDateTime getLastAccessed() {
        return lastAccessed;
    }

    /**
     * Convenience method to return a file pointer to localPath
     * 
     * @return
     */
    public File getFile() {
        return new File(localPath);
    }

    public void setMd5(String md5) {
        this.md5 = md5;
    }

    public String getMd5() {
        return md5;
    }

    public Set<String> getExternalKeys() {
        return externalKeys;
    }

    public void setExternalKeys(Set<String> externalKeys) {
        this.externalKeys = externalKeys;
    }

    public String getFilename() {
        return filename;
    }

    public void setFilename(String filename) {
        this.filename = filename;
    }

    public boolean exists() {
        return getFile().exists();
    }

}