diff options
Diffstat (limited to 'third_party/protobuf/3.6.0/java/core/src/main/java/com/google/protobuf/UninitializedMessageException.java')
-rw-r--r-- | third_party/protobuf/3.6.0/java/core/src/main/java/com/google/protobuf/UninitializedMessageException.java | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/third_party/protobuf/3.6.0/java/core/src/main/java/com/google/protobuf/UninitializedMessageException.java b/third_party/protobuf/3.6.0/java/core/src/main/java/com/google/protobuf/UninitializedMessageException.java new file mode 100644 index 0000000000..5714c063a9 --- /dev/null +++ b/third_party/protobuf/3.6.0/java/core/src/main/java/com/google/protobuf/UninitializedMessageException.java @@ -0,0 +1,99 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// 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 +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +package com.google.protobuf; + +import java.util.Collections; +import java.util.List; + +/** + * 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. {@code parseFrom()} methods <b>do not</b> + * throw this; they throw an {@link InvalidProtocolBufferException} if + * required fields are missing, because it is not a programming error to + * receive an incomplete message. In other words, + * {@code UninitializedMessageException} should never be thrown by correct + * code, but {@code InvalidProtocolBufferException} might be. + * + * @author kenton@google.com Kenton Varda + */ +public class UninitializedMessageException extends RuntimeException { + private static final long serialVersionUID = -7466929953374883507L; + + 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<String> missingFields) { + super(buildDescription(missingFields)); + this.missingFields = missingFields; + } + + private final List<String> 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<String> 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<String> 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(); + } +} |