com.dyuproject.protostuff.UninitializedMessageException Maven / Gradle / Ivy

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//========================================================================
//Copyright 2007-2009 David Yu [email protected]
//------------------------------------------------------------------------
//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.
//========================================================================


// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// http://code.google.com/p/protobuf/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

package com.dyuproject.protostuff;


/**
 * Thrown when attempting to build a protocol message that is missing required
 * fields.  This is a {@code RuntimeException} because it normally represents
 * a programming error:  it happens when some code which constructs a message
 * fails to set all the fields. 
 *
 * @author [email protected] Kenton Varda
 * @author David Yu
 */
public final class UninitializedMessageException extends RuntimeException {
  private static final long serialVersionUID = -7466929953374883507L;
  
  public final Object targetMessage;
  public final Schema targetSchema;
  
  public UninitializedMessageException(Message targetMessage) {
    this(targetMessage, targetMessage.cachedSchema());
  }
  
  public UninitializedMessageException(Object targetMessage, Schema targetSchema) {
    this.targetMessage = targetMessage;
    this.targetSchema = targetSchema;
  }
  
  public UninitializedMessageException(String msg, Message targetMessage) {
    this(msg, targetMessage, targetMessage.cachedSchema());
  }
  
  public UninitializedMessageException(String msg, Object targetMessage, 
      Schema targetSchema) {
    super(msg);
    this.targetMessage = targetMessage;
    this.targetSchema = targetSchema;
  }
  
  @SuppressWarnings("unchecked")
  public  T getTargetMessage() {
    return (T)targetMessage;
  }
  
  @SuppressWarnings("unchecked")
  public  Schema getTargetSchema() {
    return (Schema)targetSchema;
  }
  
  /*@public UninitializedMessageException(final MessageLite message) {
    super("Message was missing required fields.  (Lite runtime could not " +
          "determine which fields were missing).");
    missingFields = null;
  }

  public UninitializedMessageException(final List missingFields) {
    super(buildDescription(missingFields));
    this.missingFields = missingFields;
  }

  private final List missingFields;

  /**
   * Get a list of human-readable names of required fields missing from this
   * message.  Each name is a full path to a field, e.g. "foo.bar[5].baz".
   * Returns null if the lite runtime was used, since it lacks the ability to
   * find missing fields.
   *@
  public List getMissingFields() {
    return Collections.unmodifiableList(missingFields);
  }

  /**
   * Converts this exception to an {@link InvalidProtocolBufferException}.
   * When a parsed message is missing required fields, this should be thrown
   * instead of {@code UninitializedMessageException}.
   *@
  public InvalidProtocolBufferException asInvalidProtocolBufferException() {
    return new InvalidProtocolBufferException(getMessage());
  }

  /** Construct the description string for this exception. *@
  private static String buildDescription(final List missingFields) {
    final StringBuilder description =
      new StringBuilder("Message missing required fields: ");
    boolean first = true;
    for (final String field : missingFields) {
      if (first) {
        first = false;
      } else {
        description.append(", ");
      }
      description.append(field);
    }
    return description.toString();
  }*/
}