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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.wink.server.internal.log;
import java.util.Formatter;
import java.util.List;
import org.apache.wink.common.internal.i18n.Messages;
import org.apache.wink.common.internal.registry.ProvidersRegistry;
import org.apache.wink.common.internal.registry.ProvidersRegistry.ProviderRecord;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Logs the provider information.
*/
public class Providers {
private static final String CUSTOM = "Custom?";
private static final String CONSUMES_MEDIA_TYPE = "Consumes Media Type";
private static final String PRODUCES_MEDIA_TYPE = "Produces Media Type";
private static final String PROVIDER_FORMAT_LINE = "%n%1$-35s %2$-25s %3$-8s %4$s";
private static final String EXCEPTION_MAPPER_FORMAT_LINE = "%n%1$-25s %2$-8s %3$s";
private static final String PROVIDER_CLASS = "Provider Class";
private static final String GENERIC_TYPE = "Generic Type";
/*
* break the table into rows of BREAK_POINT. this may eliminate the
* accumulation of a massive string (i.e. thousands of resources)
*/
private static final int BREAK_POINT = 20;
private static final Logger logger =
LoggerFactory
.getLogger(Providers.class);
private final ProvidersRegistry providersRegistry;
public Providers(ProvidersRegistry providersRegistry) {
this.providersRegistry = providersRegistry;
}
public void log() {
try {
if (logger.isInfoEnabled()) {
boolean isProviderDefined = false;
/*
* readers
*/
List> providerRecords =
providersRegistry.getMessageBodyReaderRecords();
boolean temp = log(providerRecords, "MessageBodyReader");
if (temp) {
isProviderDefined = true;
}
/*
* writers
*/
providerRecords = providersRegistry.getMessageBodyWriterRecords();
temp = log(providerRecords, "MessageBodyWriter");
if (temp) {
isProviderDefined = true;
}
/*
* exception mappers
*/
providerRecords = providersRegistry.getExceptionMapperRecords();
temp = log(providerRecords);
if (temp) {
isProviderDefined = true;
}
/*
* context resolvers
*/
providerRecords = providersRegistry.getContextResolverRecords();
temp = log(providerRecords, "ContextResolver");
if (temp) {
isProviderDefined = true;
}
/*
* debug or more
*/
if (isProviderDefined && logger.isDebugEnabled()) {
logTable();
}
if (!isProviderDefined) {
logger.info(Messages.getMessage("noJAXRSApplicationDefinedProviders"));
}
}
} catch (Exception e) {
logger.trace("Could not print the entire providers metadata", e);
}
}
private boolean log(List> records, String providerType) {
if (records != null && !records.isEmpty()) {
for (ProviderRecord record : records) {
if (record.getGenericType() == null || Object.class.equals(record.getGenericType())) {
logger.info(Messages
.getMessage("registeredJAXRSProviderWithMediaTypeAndAllGenericType", record
.getProviderClass().getName(), providerType, record.getMediaType()));
} else {
logger.info(Messages.getMessage("registeredJAXRSProviderWithMediaType", record
.getProviderClass().getName(), providerType, record.getGenericType()
.getName(), record.getMediaType()));
}
}
return true;
}
return false;
}
private boolean log(List> records) {
if (records != null && !records.isEmpty()) {
for (ProviderRecord record : records) {
if (record.getGenericType() == null || Object.class.equals(record.getGenericType())) {
logger.info(Messages
.getMessage("registeredJAXRSProviderWithoutMediaTypeAndAllGenericType",
record.getProviderClass().getName(),
"ExceptionMapper"));
} else {
logger.info(Messages.getMessage("registeredJAXRSProviderWithoutMediaType",
record.getProviderClass().getName(),
"ExceptionMapper",
record.getGenericType().getName()));
}
}
return true;
}
return false;
}
private void log(List> providerRecords,
String providerType,
String mediaTypeHeader) {
StringBuffer sb = new StringBuffer();
if (!providerRecords.isEmpty()) {
Formatter f = new Formatter(sb);
f.format(PROVIDER_FORMAT_LINE, mediaTypeHeader, GENERIC_TYPE, CUSTOM, PROVIDER_CLASS);
int counter = 0;
for (ProviderRecord record : providerRecords) {
++counter;
f.format(PROVIDER_FORMAT_LINE, record.getMediaType(), record.getGenericType()
.getSimpleName(), !record.isSystemProvider(), record.getProviderClass()
.getName());
if (counter % BREAK_POINT == 0) {
logger.debug("The following JAX-RS {} providers are registered:{}",
providerType,
sb);
sb = new StringBuffer();
f = new Formatter(sb);
f.format(PROVIDER_FORMAT_LINE,
mediaTypeHeader,
GENERIC_TYPE,
CUSTOM,
PROVIDER_CLASS);
}
}
if (counter % BREAK_POINT != 0) {
logger.debug("The following JAX-RS {} providers are registered:{}",
providerType,
sb);
}
}
}
private void logExceptionMapper(List> providerRecords) {
StringBuffer sb = new StringBuffer();
if (!providerRecords.isEmpty()) {
Formatter f = new Formatter(sb);
f.format(EXCEPTION_MAPPER_FORMAT_LINE, GENERIC_TYPE, CUSTOM, PROVIDER_CLASS);
int counter = 0;
for (ProviderRecord record : providerRecords) {
++counter;
f.format(EXCEPTION_MAPPER_FORMAT_LINE,
record.getGenericType().getSimpleName(),
!record.isSystemProvider(),
record.getProviderClass().getName());
if (counter % BREAK_POINT == 0) {
logger.debug("The following JAX-RS {} providers are registered:{}",
"ExceptionMapper",
sb);
sb = new StringBuffer();
f = new Formatter(sb);
f.format(EXCEPTION_MAPPER_FORMAT_LINE, GENERIC_TYPE, CUSTOM, PROVIDER_CLASS);
}
}
if (counter % BREAK_POINT != 0) {
logger.debug("The following JAX-RS {} providers are registered:{}",
"ExceptionMapper",
sb);
}
}
}
private void logTable() {
List> providerRecords = providersRegistry.getMessageBodyReaderRecords();
log(providerRecords, "MessageBodyReader", CONSUMES_MEDIA_TYPE);
providerRecords = providersRegistry.getMessageBodyWriterRecords();
log(providerRecords, "MessageBodyWriter", PRODUCES_MEDIA_TYPE);
providerRecords = providersRegistry.getExceptionMapperRecords();
logExceptionMapper(providerRecords);
providerRecords = providersRegistry.getContextResolverRecords();
log(providerRecords, "ContextResolver", PRODUCES_MEDIA_TYPE);
}
}
