Java tutorial
/******************************************************************************* * Copyright 2012 Apigee Corporation * * Licensed 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 com.kth.baasio.exception; import static org.codehaus.jackson.map.annotate.JsonSerialize.Inclusion.NON_NULL; import com.kth.baasio.utils.JsonUtils; import com.kth.baasio.utils.MapUtils; import com.kth.baasio.utils.ObjectUtils; import org.codehaus.jackson.JsonNode; import org.codehaus.jackson.annotate.JsonAnyGetter; import org.codehaus.jackson.annotate.JsonAnySetter; import org.codehaus.jackson.annotate.JsonCreator; import org.codehaus.jackson.annotate.JsonIgnore; import org.codehaus.jackson.annotate.JsonProperty; import org.codehaus.jackson.map.annotate.JsonSerialize; import org.springframework.http.HttpStatus; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.UUID; /** * Simple wrapper for client exceptions * * @author tnine */ public class BaasioException extends Exception { private static final long serialVersionUID = 1L; private String statusCode = null; private BaasioOtherCauses otherCauses = new BaasioOtherCauses(); public BaasioException(Throwable cause) { super(cause); } public BaasioException(String error) { super(error); } public BaasioException(HttpStatus status, String errorBody) { super(); statusCode = status.toString(); try { otherCauses = JsonUtils.parse(errorBody, BaasioOtherCauses.class); } catch (BaasioRuntimeException e) { otherCauses.setProperty("error", errorBody); } catch (Exception e) { e.printStackTrace(); } otherCauses.setProperty("statusCode", status.toString()); } public String getStatusCode() { return statusCode; } public long getTimestamp() { if (!ObjectUtils.isEmpty(otherCauses) && !ObjectUtils.isEmpty(otherCauses.getTimestamp())) { return otherCauses.getTimestamp(); } return -1; } public long getDuration() { if (!ObjectUtils.isEmpty(otherCauses) && !ObjectUtils.isEmpty(otherCauses.getDuration())) { return otherCauses.getDuration(); } return -1; } public String getErrorDescription() { if (!ObjectUtils.isEmpty(otherCauses)) { return otherCauses.getErrorDescription(); } return null; } public String getErrorUuid() { if (!ObjectUtils.isEmpty(otherCauses) && !ObjectUtils.isEmpty(otherCauses.getUuid())) { return otherCauses.getUuid().toString(); } return null; } public long getErrorCode() { if (!ObjectUtils.isEmpty(otherCauses) && !ObjectUtils.isEmpty(otherCauses.getErrorCode())) { return otherCauses.getErrorCode(); } return 0; } public Map<String, JsonNode> getOtherErrorMessages() { if (!ObjectUtils.isEmpty(otherCauses)) { return otherCauses.getProperties(); } return null; } @Override public String toString() { StringBuilder builder = new StringBuilder(); builder.append(super.toString()); if (otherCauses != null) { builder.append(":" + JsonUtils.toJsonString(otherCauses)); } return builder.toString(); } static class BaasioOtherCauses { public final static String PROPERTY_TIMESTAMP = "timestamp"; public final static String PROPERTY_DURATION = "duration"; public final static String PROPERTY_ERROR_DESCRIPTION = "error_description"; public final static String PROPERTY_ERROR_UUID = "error_uuid"; public final static String PROPERTY_ERROR_CODE = "error_code"; protected Map<String, JsonNode> properties = new HashMap<String, JsonNode>(); @JsonCreator public static BaasioOtherCauses createObject(String jsonString) { BaasioOtherCauses otherCauses = JsonUtils.fromJsonString(jsonString, BaasioOtherCauses.class); return otherCauses; } @JsonIgnore public List<String> getPropertyNames() { List<String> properties = new ArrayList<String>(); properties.add(PROPERTY_TIMESTAMP); properties.add(PROPERTY_DURATION); properties.add(PROPERTY_ERROR_DESCRIPTION); properties.add(PROPERTY_ERROR_UUID); properties.add(PROPERTY_ERROR_CODE); return properties; } @JsonAnyGetter public Map<String, JsonNode> getProperties() { return MapUtils.newMapWithoutKeys(properties, getPropertyNames()); } @JsonAnySetter public void setProperty(String name, JsonNode value) { if (value == null) { properties.remove(name); } else { properties.put(name, value); } } /** * Get error timestamp. * * @return Error timestamp */ @JsonSerialize(include = NON_NULL) @JsonProperty(PROPERTY_TIMESTAMP) public Long getTimestamp() { return JsonUtils.getLongProperty(properties, PROPERTY_TIMESTAMP); } /** * Get error description. * * @return Error description */ @JsonSerialize(include = NON_NULL) @JsonProperty(PROPERTY_ERROR_DESCRIPTION) public String getErrorDescription() { return JsonUtils.getStringProperty(properties, PROPERTY_ERROR_DESCRIPTION); } /** * Get error duration. * * @return Error duration */ @JsonSerialize(include = NON_NULL) @JsonProperty(PROPERTY_DURATION) public Long getDuration() { return JsonUtils.getLongProperty(properties, PROPERTY_DURATION); } /** * Get error UUID. * * @return error UUID */ @JsonSerialize(include = NON_NULL) @JsonProperty(PROPERTY_ERROR_UUID) public UUID getUuid() { return JsonUtils.getUUIDProperty(properties, PROPERTY_ERROR_UUID); } /** * Get error UUID. * * @return error UUID */ @JsonSerialize(include = NON_NULL) @JsonProperty(PROPERTY_ERROR_CODE) public Long getErrorCode() { return JsonUtils.getLongProperty(properties, PROPERTY_ERROR_CODE); } /** * Set the property * * @param name * @param value */ public void setProperty(String name, String value) { JsonUtils.setStringProperty(properties, name, value); } /** * Set the property * * @param name * @param value */ public void setProperty(String name, boolean value) { JsonUtils.setBooleanProperty(properties, name, value); } /** * Set the property * * @param name * @param value */ public void setProperty(String name, long value) { JsonUtils.setLongProperty(properties, name, value); } /** * Set the property * * @param name * @param value */ public void setProperty(String name, int value) { setProperty(name, (long) value); } /** * Set the property * * @param name * @param value */ public void setProperty(String name, double value) { JsonUtils.setDoubleProperty(properties, name, value); } @Override public String toString() { return JsonUtils.toJsonString(this); } } }