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 * to you under the Apache License, Version 2.0 (the
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 * http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.olingo.odata2.api.client.batch;

import java.util.Map;

import org.apache.olingo.odata2.api.rt.RuntimeDelegate;

/**
 * A BatchQueryPart
 * BatchQueryPart represents a single retrieve request
 */
public abstract class BatchQueryPart implements BatchPart {

  public abstract Map getHeaders();

  public abstract String getUri();

  public abstract String getMethod();

  public abstract String getContentId();

  /**
   * @param headers
   * @return a new builder object
   */
  public static BatchQueryPartBuilder headers(final Map headers) {
    return newBuilder().headers(headers);
  }

  /**
   * @param uri should not be null
   * @return a new builder object
   */
  public static BatchQueryPartBuilder uri(final String uri) {
    return newBuilder().uri(uri);
  }

  /**
   * @param method MUST be the HTTP GET method
   * @return a new builder object
   */
  public static BatchQueryPartBuilder method(final String method) {
    return newBuilder().method(method);
  }

  /**
   * @param contentId can be used to identify the different request within a the batch
   * @return a new builder object
   */
  public static BatchQueryPartBuilder contentId(final String contentId) {
    return newBuilder().contentId(contentId);
  }

  /**
   * @return returns a new builder object
   */
  public static BatchQueryPartBuilder newBuilder() {
    return BatchQueryPartBuilder.newInstance();
  }

  public static abstract class BatchQueryPartBuilder {

    protected BatchQueryPartBuilder() {}

    private static BatchQueryPartBuilder newInstance() {
      return RuntimeDelegate.createBatchQueryPartBuilder();
    }

    public abstract BatchQueryPart build();

    public abstract BatchQueryPartBuilder headers(Map headers);

    public abstract BatchQueryPartBuilder uri(String uri);

    public abstract BatchQueryPartBuilder method(String method);

    public abstract BatchQueryPartBuilder contentId(String contentId);

  }
}