Strolch
/
strolch
mirror of https://github.com/strolch-li/strolch.git
1
1
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[New] FromFlatJsonVisitor is now a StrolchRootElementVisitor

This commit is contained in:
Robert von Burg 2018-02-12 13:45:29 +01:00
parent f3ea159052
commit d95c3913d8
1 changed files with 68 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
li.strolch.model/src/main/java/li/strolch/model/json/FromFlatJsonVisitor.java
View File

@ -5,12 +5,12 @@ import java.util.Set;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import li.strolch.exception.StrolchModelException;
import li.strolch.model.ParameterBag;
import li.strolch.model.StrolchRootElement;
import li.strolch.model.*;
import li.strolch.model.Tags.Json;
import li.strolch.model.activity.Activity;
import li.strolch.model.parameter.Parameter;
import li.strolch.model.visitor.StrolchRootElementVisitor;
import li.strolch.utils.collections.MapOfSets;
import li.strolch.utils.dbc.DBC;
@ -19,30 +19,36 @@ import li.strolch.utils.dbc.DBC;
* Maps a given {@link JsonObject} to a {@link StrolchRootElement}. All {@link Parameter Parameters} on the element are
* iterated and expected to be found as a member on the {@link JsonObject}.
* </p>
*
* <p>
* <p>
* To ignore {@link Parameter Parameters} or {@link ParameterBag ParameterBags} use the
* {@link #ignoreParameter(String, String)} and {@link #ignoreBag(String)} methods
* </p>
*
* <p>
* <p>
* {@link Parameter} can be made optional by using the {@link #optionalParameter(String, String)} method
* </p>
*
* @author Robert von Burg <eitch@eitchnet.ch>
*
* @param <T>
* @author Robert von Burg <eitch@eitchnet.ch>
*/
public class FromFlatJsonVisitor {
public class FromFlatJsonVisitor implements StrolchRootElementVisitor<Void> {
private MapOfSets<String, String> ignoredKeys;
private MapOfSets<String, String> optionalKeys;
private JsonObject srcObject;
public FromFlatJsonVisitor() {
this.ignoredKeys = new MapOfSets<>();
this.optionalKeys = new MapOfSets<>();
}
public FromFlatJsonVisitor(JsonObject srcObject) {
this.srcObject = srcObject;
this.ignoredKeys = new MapOfSets<>();
this.optionalKeys = new MapOfSets<>();
}
public FromFlatJsonVisitor(MapOfSets<String, String> ignoredParams) {
this.ignoredKeys = new MapOfSets<>();
this.optionalKeys = new MapOfSets<>();
@ -63,17 +69,58 @@ public class FromFlatJsonVisitor {
return this;
}
public void visit(StrolchRootElement element, JsonObject jsonObject) {
@Override
public Void visitResource(Resource dstElement) {
if (this.srcObject.has(Json.OBJECT_TYPE)) {
DBC.PRE.assertEquals("objectType must be the same, if set on JsonObject!", dstElement.getObjectType(),
srcObject.get(Json.OBJECT_TYPE).getAsString());
}
DBC.PRE.assertTrue("objectType must be set!", jsonObject.has(Json.OBJECT_TYPE));
DBC.PRE.assertEquals("objectType must be the same!", element.getObjectType(),
jsonObject.get(Json.OBJECT_TYPE).getAsString());
visit(dstElement);
return null;
}
@Override
public Void visitOrder(Order dstElement) {
if (this.srcObject.has(Json.OBJECT_TYPE)) {
DBC.PRE.assertEquals("objectType must be the same, if set on JsonObject!", dstElement.getObjectType(),
srcObject.get(Json.OBJECT_TYPE).getAsString());
}
visit(dstElement);
return null;
}
@Override
public Void visitActivity(Activity dstElement) {
throw new UnsupportedOperationException("Activity elements are not supported by this visitor!");
}
public void visit(StrolchRootElement dstElement, JsonObject srcObject) {
if (this.srcObject != null && this.srcObject != srcObject) {
throw new IllegalStateException("The srcObject was already set with a different value in the constructor!");
}
DBC.PRE.assertTrue("objectType must be set!", srcObject.has(Json.OBJECT_TYPE));
DBC.PRE.assertEquals("objectType must be the same!", dstElement.getObjectType(),
srcObject.get(Json.OBJECT_TYPE).getAsString());
this.srcObject = srcObject;
visit(dstElement);
}
public void visit(StrolchRootElement dstElement) {
// types must be the same, if exists on source element
if (this.srcObject.has(Json.TYPE))
DBC.PRE.assertEquals("type must be the same!", dstElement.getObjectType(),
this.srcObject.get(Json.TYPE).getAsString());
// update name if possible
if (jsonObject.has(Json.NAME))
element.setName(jsonObject.get(Json.NAME).getAsString());
if (this.srcObject.has(Json.NAME))
dstElement.setName(srcObject.get(Json.NAME).getAsString());
Set<String> bagKeySet = element.getParameterBagKeySet();
Set<String> bagKeySet = dstElement.getParameterBagKeySet();
for (String bagId : bagKeySet) {
// see if we have to ignore this bag i.e. empty set existing
@ -81,7 +128,7 @@ public class FromFlatJsonVisitor {
if (ignoredParamIds != null && ignoredParamIds.isEmpty())
continue;
ParameterBag parameterBag = element.getParameterBag(bagId);
ParameterBag parameterBag = dstElement.getParameterBag(bagId);
Set<String> parameterKeySet = parameterBag.getParameterKeySet();
for (String paramId : parameterKeySet) {
@ -90,7 +137,7 @@ public class FromFlatJsonVisitor {
if (ignoredParamIds != null && ignoredParamIds.contains(paramId))
continue;
JsonElement jsonElement = jsonObject.get(paramId);
JsonElement jsonElement = this.srcObject.get(paramId);
if (jsonElement == null) {
if (this.optionalKeys.containsElement(bagId, paramId))
continue;
@ -98,8 +145,9 @@ public class FromFlatJsonVisitor {
}
if (!jsonElement.isJsonPrimitive()) {
throw new StrolchModelException("JsonElement " + paramId + " is not a json primitive but a "
+ jsonElement.getClass().getName());
throw new StrolchModelException(
"JsonElement " + paramId + " is not a json primitive but a " + jsonElement.getClass()
.getName());
}
Parameter<?> parameter = parameterBag.getParameter(paramId);