TemplateDescriptor.java

/*
 * Copyright 2013 eXo Platform SAS
 *
 * 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 juzu.impl.plugin.template.metadata;

import juzu.Path;
import juzu.impl.template.spi.TemplateStub;
import juzu.template.Template;

import java.lang.reflect.Constructor;

/** @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> */
public class TemplateDescriptor {

  /** . */
  private final String path;

  /** . */
  private final Class<? extends Template> type;

  /** . */
  private final Class<? extends TemplateStub> stubType;

  /** . */
  private final TemplateStub stub;

  /** Not really useful at runtime, rather used to have distinct template subclass for different content. */
  private final long md5;

  public TemplateDescriptor(
      String path,
      long md5,
      Class<? extends Template> type,
      Class<? extends TemplateStub> stubType) {

    //
    TemplateStub stub;
    try {
      Constructor ctor = stubType.getConstructor(ClassLoader.class, String.class);
      stub = (TemplateStub)ctor.newInstance(type.getClassLoader(), type.getName());

    }
    catch (Exception e) {
      throw new UnsupportedOperationException("Handle me gracefully", e);
    }

    //
    this.path = path;
    this.md5 = md5;
    this.type = type;
    this.stubType = stubType;
    this.stub = stub;
  }

  public long getMD5() {
    return md5;
  }

  public TemplateStub getStub() {
    return stub;
  }

  public String getPath() {
    return path;
  }

  public Class<? extends Template> getType() {
    return type;
  }

  public Class<? extends TemplateStub> getStubType() {
    return stubType;
  }
}