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Java example source code file (ProvisionException.java)

This example Java source code file (ProvisionException.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

collection, immutableset, message, override, provisionexception, runtimeexception, string, throwable, unable, util

The ProvisionException.java Java example source code

/**
 * Copyright (C) 2006 Google Inc.
 *
 * 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 com.google.inject;

import static com.google.common.base.Preconditions.checkArgument;

import com.google.common.collect.ImmutableSet;
import com.google.inject.internal.Errors;
import com.google.inject.spi.Message;

import java.util.Collection;

/**
 * Indicates that there was a runtime failure while providing an instance.
 *
 * @author kevinb@google.com (Kevin Bourrillion)
 * @author jessewilson@google.com (Jesse Wilson)
 * @since 2.0
 */
public final class ProvisionException extends RuntimeException {

  private final ImmutableSet<Message> messages;

  /** Creates a ProvisionException containing {@code messages}. */
  public ProvisionException(Iterable<Message> messages) {
    this.messages = ImmutableSet.copyOf(messages);
    checkArgument(!this.messages.isEmpty());
    initCause(Errors.getOnlyCause(this.messages));
  }

  public ProvisionException(String message, Throwable cause) {
    super(cause);
    this.messages = ImmutableSet.of(new Message(message, cause));
  }

  public ProvisionException(String message) {
    this.messages = ImmutableSet.of(new Message(message));
  }

  /** Returns messages for the errors that caused this exception. */
  public Collection<Message> getErrorMessages() {
    return messages;
  }

  @Override public String getMessage() {
    return Errors.format("Unable to provision, see the following errors", messages);
  }

  private static final long serialVersionUID = 0;
}

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