com.urbanairship.api.client.parse.APIErrorDeserializer Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of java-client Show documentation
The Urban Airship Java client library
There is a newer version: 9.7.0
/*
 * Copyright 2013 Urban Airship and Contributors
 */

package com.urbanairship.api.client.parse;

import com.google.common.base.Supplier;
import com.google.common.collect.ImmutableMap;
import com.urbanairship.api.client.APIError;
import com.urbanairship.api.common.parse.*;
import org.codehaus.jackson.JsonParser;
import org.codehaus.jackson.map.DeserializationContext;
import org.codehaus.jackson.map.JsonDeserializer;

import java.io.IOException;

/*
Deserializers create a mapping between Jackson and an object. This abstracts all
the boilerplate necessary for Jackson stream parsing, which is essentially what
 we're doing. This will be a lot cleaner when lambda's come down.
 If you're using Intellij, be sure and toggle open the code that's
 been collapsed.
 */
class APIErrorDeserializer extends JsonDeserializer {

    private static final FieldParserRegistry FIELD_PARSERS =
            new MapFieldParserRegistry(
                    ImmutableMap.>builder()
                    .put("operation_id", new FieldParser() {
                        @Override
                        public void parse(APIErrorReader reader, JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
                            reader.readOperationId(jsonParser);
                        }
                    })
                    .put("error", new FieldParser() {
                        @Override
                        public void parse(APIErrorReader reader, JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
                            reader.readError(jsonParser);
                        }
                    })
                    .put("error_code", new FieldParser() {
                        @Override
                        public void parse(APIErrorReader reader, JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
                            reader.readErrorCode(jsonParser);
                        }
                    })
                    .put("details", new FieldParser() {
                        @Override
                        public void parse(APIErrorReader reader, JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
                            reader.readDetails(jsonParser);
                        }
                    })
                    .build()
            );

    private final StandardObjectDeserializer deserializer;

    // See Google Guava for Supplier details
    public APIErrorDeserializer(){
        deserializer = new StandardObjectDeserializer(
                FIELD_PARSERS,
                new Supplier() {
                    @Override
                    public APIErrorReader get() {
                        return new APIErrorReader();
                    }
                }
        );
    }
    public APIError deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
            throws IOException {
        return deserializer.deserialize(jsonParser, deserializationContext);
    }
}