Java tutorial
/* * South Face Software * Copyright 2012, South Face Software, Inc. and individual contributors * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package com.sfs.captor.model; import java.io.Serializable; import java.util.Date; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.EnumType; import javax.persistence.Enumerated; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Lob; import javax.persistence.ManyToOne; import javax.persistence.PostLoad; import javax.persistence.PrePersist; import javax.persistence.PreUpdate; import javax.persistence.Table; import javax.persistence.Transient; import javax.validation.constraints.NotNull; import javax.validation.constraints.Size; import org.apache.commons.lang.StringUtils; import org.hibernate.envers.Audited; import com.sfs.captor.data.Constants; import com.sfs.captor.data.Literal; import com.sfs.captor.data.ModelResourceType; import com.sfs.captor.util.ModelUtils; /** * Resource * * @author lbbishop * */ @Entity @Audited @Table(name = "resource") public class Resource extends EntityBase implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @NotNull(message = "Name is required") @Size(max = 100) @Column(name = "name", length = 100, nullable = false) private String name; @NotNull(message = "Model Resource Type is required") @Enumerated(EnumType.STRING) @Column(name = "model_resource_type", nullable = false) private ModelResourceType modelResourceType; @NotNull(message = "Path is required") @Size(max = 255) @Column(name = "path", length = 255, nullable = false) private String path; @Size(max = 255) @Column(name = "description", length = 255, nullable = true) private String description; @Lob @Column(name = "contents", columnDefinition = "LONGBLOB NULL", nullable = true) private byte[] contents; @Size(max = 255) @Column(name = "content_type", length = 255, nullable = true) private String contentType; @ManyToOne private Project project; @Transient private boolean externalResource; /** * Constructor */ public Resource() { super(); init(); } /** * Identifier constructor */ public Resource(int identifier) { super(); init(); this.identifier = Integer.valueOf(identifier); } /** * init method */ private void init() { } /** * PrePersist method */ @PrePersist public void prePersist() { if (this.modifiedBy == null) { this.modifiedBy = Literal.APPNAME.toString(); } this.modifiedDate = new Date(); } /** * PreUpdate method */ @PreUpdate public void preUpdate() { if (this.modifiedBy == null) { this.modifiedBy = Literal.APPNAME.toString(); } this.modifiedDate = new Date(); } /** * Post load callback */ @PostLoad public void postLoad() { this.externalResource = false; if (this.contents == null || this.contents.length == 0) { this.externalResource = true; } } /** * @return the id */ public Long getId() { return id; } /** * @param id * the id to set */ public void setId(Long id) { this.id = id; } /** * @return the path */ public String getPath() { return path; } /** * @return the path */ public String getPathAbbrv() { return StringUtils.abbreviate(path, Constants.ABBRV_DESC_LEN); } /** * @param path * the path to set */ public void setPath(String path) { this.path = path; } /** * @return the description */ public String getDescription() { return description; } /** * @param description * the description to set */ public void setDescription(String description) { this.description = description; } /** * @return the content */ public byte[] getContents() { return contents; } /** * @param content * the content to set */ public void setContents(byte[] contents) { this.contents = contents; } /** * @return the contentType */ public String getContentType() { return contentType; } /** * @param contentType * the contentType to set */ public void setContentType(String contentType) { this.contentType = contentType; } /** * @return the name */ public String getName() { return name; } /** * @param name * the name to set */ public void setName(String name) { if (name != null) { this.name = name.trim(); } } /** * @return the modelResourceType */ public ModelResourceType getModelResourceType() { return modelResourceType; } /** * @param modelResourceType * the modelResourceType to set */ public void setModelResourceType(ModelResourceType modelResourceType) { this.modelResourceType = modelResourceType; } /** * @return the project */ public Project getProject() { return project; } /** * @param project * the project to set */ public void setProject(Project project) { this.project = project; } /** * @return the identifier string (PREFIX concatenated with identifier) */ public String getArtifact() { return ModelUtils.buildArtifactIdentifier(Literal.PREFIX_MODELRESOURCE.toString(), this.identifier); } /** * @return the externalResource */ public boolean isExternalResource() { return externalResource; } /* * (non-Javadoc) * * @see java.lang.Object#hashCode() */ @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((name == null) ? 0 : name.hashCode()); return result; } /* * (non-Javadoc) * * @see java.lang.Object#equals(java.lang.Object) */ @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; Resource other = (Resource) obj; if (name == null) { if (other.name != null) return false; } else if (!name.equals(other.name)) return false; return true; } }