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com.github.dockerjava.netty.NettyWebTarget Maven / Gradle / Ivy
package com.github.dockerjava.netty;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.Charset;
import java.nio.charset.UnsupportedCharsetException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github.dockerjava.core.DefaultDockerClientConfig;
import com.github.dockerjava.core.WebTarget;
import com.google.common.collect.ImmutableSet;
import io.netty.handler.codec.http.HttpConstants;
import org.apache.commons.lang.StringUtils;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
/**
* This class is basically a replacement of {@link javax.ws.rs.client.WebTarget} to allow simpler migration of JAX-RS code to a netty based
* implementation.
*
* @author Marcus Linke
*/
public class NettyWebTarget implements WebTarget {
private final ChannelProvider channelProvider;
private final String host;
private final ImmutableList path;
private final ImmutableMap queryParams;
/**
* Multiple values for the same name param.
*/
private final ImmutableMap> queryParamsSet;
private static final String PATH_SEPARATOR = "/";
private final ObjectMapper objectMapper;
@Deprecated
public NettyWebTarget(ChannelProvider channelProvider, String host) {
this(
DefaultDockerClientConfig.createDefaultConfigBuilder().build().getObjectMapper(),
channelProvider,
host,
ImmutableList.of(),
ImmutableMap.of(),
ImmutableMap.of()
);
}
public NettyWebTarget(ObjectMapper objectMapper, ChannelProvider channelProvider, String host) {
this(
objectMapper,
channelProvider,
host,
ImmutableList.of(),
ImmutableMap.of(),
ImmutableMap.of()
);
}
private NettyWebTarget(
ObjectMapper objectMapper,
ChannelProvider channelProvider,
String host,
ImmutableList path,
ImmutableMap queryParams,
ImmutableMap> queryParamsSet
) {
this.objectMapper = objectMapper;
this.channelProvider = channelProvider;
this.host = host;
this.path = path;
this.queryParams = queryParams;
this.queryParamsSet = queryParamsSet;
}
public NettyWebTarget path(String... components) {
ImmutableList.Builder newPath = ImmutableList.builder().addAll(this.path);
for (String component : components) {
newPath.addAll(Arrays.asList(StringUtils.split(component, PATH_SEPARATOR)));
}
return new NettyWebTarget(objectMapper, channelProvider, host, newPath.build(), queryParams, queryParamsSet);
}
public NettyInvocationBuilder request() {
String resource = PATH_SEPARATOR + StringUtils.join(path, PATH_SEPARATOR);
List params = new ArrayList<>();
for (Map.Entry entry : queryParams.entrySet()) {
params.add(entry.getKey() + "=" + encodeComponent(entry.getValue(), HttpConstants.DEFAULT_CHARSET));
}
for (Map.Entry> entry : queryParamsSet.entrySet()) {
for (String entryValueValue : entry.getValue()) {
params.add(entry.getKey() + "=" + encodeComponent(entryValueValue, HttpConstants.DEFAULT_CHARSET));
}
}
if (!params.isEmpty()) {
resource = resource + "?" + StringUtils.join(params, "&");
}
return new NettyInvocationBuilder(objectMapper, channelProvider, resource)
.header("Host", host);
}
/**
* @see io.netty.handler.codec.http.QueryStringEncoder
*/
private static String encodeComponent(String s, Charset charset) {
// TODO: Optimize me.
try {
return URLEncoder.encode(s, charset.name()).replace("+", "%20");
} catch (UnsupportedEncodingException ignored) {
throw new UnsupportedCharsetException(charset.name());
}
}
public NettyWebTarget resolveTemplate(String name, Object value) {
ImmutableList.Builder newPath = ImmutableList.builder();
for (String component : path) {
component = component.replaceAll("\\{" + name + "\\}", value.toString());
newPath.add(component);
}
return new NettyWebTarget(objectMapper, channelProvider, host, newPath.build(), queryParams, queryParamsSet);
}
public NettyWebTarget queryParam(String name, Object value) {
ImmutableMap.Builder builder = ImmutableMap.builder().putAll(queryParams);
if (value != null) {
builder.put(name, value.toString());
}
return new NettyWebTarget(objectMapper, channelProvider, host, path, builder.build(), queryParamsSet);
}
public NettyWebTarget queryParamsSet(String name, Set values) {
ImmutableMap.Builder> builder = ImmutableMap.>builder().putAll(queryParamsSet);
if (values != null) {
ImmutableSet.Builder valueBuilder = ImmutableSet.builder();
for (Object value : values) {
valueBuilder.add(value.toString());
}
builder.put(name, valueBuilder.build());
}
return new NettyWebTarget(objectMapper, channelProvider, host, path, queryParams, builder.build());
}
public NettyWebTarget queryParamsJsonMap(String name, Map values) {
if (values != null && !values.isEmpty()) {
try {
// when param value is JSON string
return queryParam(name, objectMapper.writeValueAsString(values));
} catch (IOException e) {
throw new RuntimeException(e);
}
} else {
return this;
}
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
NettyWebTarget webTarget = (NettyWebTarget) o;
if (!Objects.equals(channelProvider, webTarget.channelProvider)) {
return false;
}
if (!Objects.equals(path, webTarget.path)) {
return false;
}
if (!Objects.equals(queryParams, webTarget.queryParams)) {
return false;
}
if (!Objects.equals(queryParamsSet, webTarget.queryParamsSet)) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result = channelProvider != null ? channelProvider.hashCode() : 0;
result = 31 * result + (path != null ? path.hashCode() : 0);
result = 31 * result + (queryParams != null ? queryParams.hashCode() : 0);
result = 31 * result + (queryParamsSet != null ? queryParamsSet.hashCode() : 0);
return result;
}
}
