
org.kiwiproject.consul.ConsulException Maven / Gradle / Ivy
package org.kiwiproject.consul;
import static java.util.Objects.isNull;
import okhttp3.ResponseBody;
import retrofit2.Response;
import java.io.IOException;
/**
* Wraps an exception thrown whilst interacting with the Consul API.
*/
public class ConsulException extends RuntimeException {
private final int code;
private final boolean hasCode;
/**
* Constructs an instance of this class.
*
* @param message The exception message.
*/
public ConsulException(String message) {
super(message);
this.code = 0;
this.hasCode = false;
}
/**
* Constructs an instance of this class.
*
* @param message The exception message.
* @param throwable The wrapped {@link Throwable} object.
*/
public ConsulException(String message, Throwable throwable) {
super(message, throwable);
this.code = 0;
this.hasCode = false;
}
public ConsulException(int code, Response> response) {
super(String.format("Consul request failed with status [%s]: %s",
code, message(response)));
this.code = code;
this.hasCode = true;
}
public ConsulException(Throwable throwable) {
super("Consul request failed", throwable);
this.code = 0;
this.hasCode = false;
}
static String message(Response> response) {
try {
ResponseBody responseBody = response.errorBody();
return isNull(responseBody) ? response.message() : responseBody.string();
} catch (IOException e) {
return response.message();
}
}
/**
* Check whether this exception is known to have been caused by an HTTP error.
*
* @return true if this exception was definitely caused by an HTTP error, otherwise false
* @see #getCode()
*/
public boolean hasCode() {
return hasCode;
}
/**
* Get the HTTP status code that caused this exception, if any.
*
* @return the HTTP error code, or zero if not known to have been caused by an HTTP error
* @see #hasCode()
*/
public int getCode() {
return code;
}
}
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