com.smartitengineering.cms.api.impl.content.ContentIdImpl.java Source code

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Here is the source code for com.smartitengineering.cms.api.impl.content.ContentIdImpl.java

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/*
 *
 * This is a simple Content Management System (CMS)
 * Copyright (C) 2010  Imran M Yousuf (imyousuf@smartitengineering.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.smartitengineering.cms.api.impl.content;

import com.smartitengineering.cms.api.content.Content;
import com.smartitengineering.cms.api.workspace.WorkspaceId;
import com.smartitengineering.cms.api.content.ContentId;
import com.smartitengineering.cms.api.factory.SmartContentAPI;
import com.smartitengineering.cms.api.impl.Utils;
import com.smartitengineering.cms.api.impl.workspace.WorkspaceIdImpl;
import com.smartitengineering.cms.api.impl.type.ContentTypeIdImpl;
import com.smartitengineering.cms.spi.SmartContentSPI;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.net.URI;
import java.util.Arrays;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 * @author kaisar
 */
public class ContentIdImpl implements ContentId {

    private WorkspaceId workspaceId;
    private byte[] id;
    private transient Logger logger = LoggerFactory.getLogger(getClass());

    protected Logger getLogger() {
        if (logger == null) {
            logger = Utils.getLogger(getClass());
        }
        return logger;
    }

    public void setWorkspaceId(WorkspaceId workspaceId) {
        if (workspaceId == null) {
            throw new IllegalArgumentException(String.format(ContentTypeIdImpl.STANDARD_ERROR_MSG, "Workspace Id"));
        }
        this.workspaceId = workspaceId;
    }

    public void setId(byte[] id) {
        if (id == null) {
            throw new IllegalArgumentException(String.format(ContentTypeIdImpl.STANDARD_ERROR_MSG, "Content Id"));
        }
        this.id = id;
    }

    @Override
    public Content getContent() {
        try {
            return SmartContentAPI.getInstance().getContentLoader().loadContent(this);
        } catch (Exception ex) {
            getLogger().warn("could not load content!", ex);
            return null;
        }
    }

    @Override
    public WorkspaceId getWorkspaceId() {
        return this.workspaceId;
    }

    @Override
    public byte[] getId() {
        return this.id;
    }

    @Override
    public String toString() {
        return new StringBuilder().append(workspaceId).append(':').append(new String(id)).toString();
    }

    @Override
    public void writeExternal(DataOutput output) throws IOException {
        output.write(org.apache.commons.codec.binary.StringUtils.getBytesUtf8(toString()));
    }

    @Override
    public void readExternal(DataInput input) throws IOException, ClassNotFoundException {
        String idString = Utils.readStringInUTF8(input);
        if (getLogger().isDebugEnabled()) {
            getLogger().debug("Trying to parse content id: " + idString);
        }
        if (StringUtils.isBlank(idString)) {
            throw new IOException("No content!");
        }
        String[] params = idString.split(":");
        if (getLogger().isDebugEnabled()) {
            getLogger().debug("Params " + Arrays.toString(params));
        }
        if (params == null || params.length != 3) {
            throw new IOException(
                    "Object should have been in the format globalNamespace:workspace-name:type-name!");
        }
        WorkspaceIdImpl workspaceIdImpl = new WorkspaceIdImpl();
        workspaceIdImpl.setGlobalNamespace(params[0]);
        workspaceIdImpl.setName(params[1]);
        setWorkspaceId(workspaceIdImpl);
        setId(org.apache.commons.codec.binary.StringUtils.getBytesUtf8(params[2]));
    }

    @Override
    public int compareTo(ContentId o) {
        if (o == null) {
            return 1;
        }
        if (equals(o)) {
            return 0;
        }
        return toString().compareTo(o.toString());
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final ContentIdImpl other = (ContentIdImpl) obj;
        if (this.workspaceId != other.workspaceId
                && (this.workspaceId == null || !this.workspaceId.equals(other.workspaceId))) {
            return false;
        }
        if (!Arrays.equals(this.id, other.id)) {
            return false;
        }
        return true;
    }

    @Override
    public int hashCode() {
        int hash = 3;
        hash = 89 * hash + (this.workspaceId != null ? this.workspaceId.hashCode() : 0);
        hash = 89 * hash + Arrays.hashCode(this.id);
        return hash;
    }

    @Override
    public URI getUri() {
        return SmartContentSPI.getInstance().getUriProvider().getContentUri(this);
    }

    @Override
    public String getEncodedUriString() {
        URI uri = getUri();
        return uri == null ? null : uri.toASCIIString();
    }
}