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Activated backend generator, Updated utils to parse sql style filters
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@fwPunsher
fwPunsher committed Jul 24, 2017
1 parent de29c9e commit 1f72572
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Showing 2 changed files with 102 additions and 103 deletions.
2 changes: 1 addition & 1 deletion de.wwu.md2.framework/src/de/wwu/md2/framework/MD2RuntimeModule.java
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@ public void configure(Binder binder) {
// Bind all generators here
//multiGenBinder.addBinding().to(IOSGenerator.class);
//multiGenBinder.addBinding().to(AndroidLollipopGenerator.class);
//multiGenBinder.addBinding().to(BackendGenerator.class);
multiGenBinder.addBinding().to(BackendGenerator.class);
multiGenBinder.addBinding().to(AndroidWearableGenerator.class);
//multiGenBinder.addBinding().to(TestGenerator.class);
//multiGenBinder.addBinding().to(MapAppsGenerator.class);
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203 changes: 101 additions & 102 deletions de.wwu.md2.framework/src/de/wwu/md2/framework/generator/backend/CommonClasses.xtend
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ import static extension de.wwu.md2.framework.generator.util.MD2GeneratorUtil.get
import static extension de.wwu.md2.framework.generator.backend.util.MD2BackendUtil.*

class CommonClasses {

def static createConfig(String basePackageName, DataContainer dataContainer) '''
package «basePackageName»;

Expand Down Expand Up @@ -35,7 +35,7 @@ class CommonClasses {
public final static List<String> SUPPORTED_MODEL_VERSIONS = Lists.newArrayList("«dataContainer.main.modelVersion»");

public final static HashMap<String, String[]> APP_WORKFLOWELEMENT_RELATIONSHIP = setAppWorkflowElementRelationship();

public final static HashMap<String, HashMap<String, String>> WORKFLOWELEMENT_EVENT_SUCCESSION = setAppWorkflowElementSuccession();

«IF dataContainer.main.fileUploadConnection != null»
Expand All @@ -44,19 +44,19 @@ class CommonClasses {
public final static File UPLOAD_FILE_STORAGE_PATH = null;
«ENDIF»


public static final String UPLOAD_FILE_PREFIX = "upload-";

/**
* provides a hashmap for filtering workflowelements by apps
* setAppWorkflowElementRelationship : (App) --> (Wfe)*
* @return
*/
* provides a hashmap for filtering workflowelements by apps
* setAppWorkflowElementRelationship : (App) --> (Wfe)*
* @return
*/
private static HashMap<String,String[]> setAppWorkflowElementRelationship(){

HashMap<String, String[]> map = new HashMap<String, String[]>();
«FOR app: dataContainer.apps»
map.put("«app.name»", new String[]{«FOR wfe: dataContainer.workflowElementsForApp(app) SEPARATOR ","»"«wfe.name»"«ENDFOR»});
«FOR app : dataContainer.apps»
map.put("«app.name»", new String[]{«FOR wfe: dataContainer.workflowElementsForApp(app) SEPARATOR ","»"«wfe.name»"«ENDFOR»});
«ENDFOR»
return map;
}
Expand All @@ -72,133 +72,132 @@ class CommonClasses {
HashMap<String, String> innerMap;

«FOR wfe : dataContainer.workflowElements»
// Coming from «wfe.name»
innerMap = new HashMap<String, String>();
«FOR event : dataContainer.getEventsFromWorkflowElement(wfe)»
«IF (eventIsEndEvent(event, wfe, dataContainer))»
innerMap.put("«event.name»", "_terminate");
«ELSE»
innerMap.put("«event.name»", "«dataContainer.getNextWorkflowElement(wfe, event).name»");
«ENDIF»
«ENDFOR»
map.put("«wfe.name»", innerMap);

// Coming from «wfe.name»
innerMap = new HashMap<String, String>();
«FOR event : dataContainer.getEventsFromWorkflowElement(wfe)»
«IF (eventIsEndEvent(event, wfe, dataContainer))»
innerMap.put("«event.name»", "_terminate");
«ELSE»
innerMap.put("«event.name»", "«dataContainer.getNextWorkflowElement(wfe, event).name»");
«ENDIF»
«ENDFOR»
map.put("«wfe.name»", innerMap);
«ENDFOR»


// Coming from invokables
innerMap = new HashMap<String, String>();
«FOR eventDesc : dataContainer.workflow.workflowElementEntries.map[wfe | wfe.eventDescription].toSet»
HashMap<String, String> map«eventDesc.toFirstUpper» = new HashMap<String, String>();
HashMap<String, String> map«eventDesc.toFirstUpper» = new HashMap<String, String>();
«ENDFOR»
«FOR wfeEntry : dataContainer.workflow.workflowElementEntries.filter(wfe | wfe.isInvokable())»
map«wfeEntry.eventDescription.toFirstUpper».put("«wfeEntry.eventDescription»", "«wfeEntry.workflowElement.name»");
map«wfeEntry.eventDescription.toFirstUpper».put("«wfeEntry.eventDescription»", "«wfeEntry.workflowElement.name»");
«ENDFOR»
«FOR eventDesc : dataContainer.workflow.workflowElementEntries.map[wfe | wfe.eventDescription].toSet»
map.put("«eventDesc»", map«eventDesc.toFirstUpper»);
map.put("«eventDesc»", map«eventDesc.toFirstUpper»);
«ENDFOR»

return map;
}
}
'''
def static boolean eventIsEndEvent(WorkflowEvent event, WorkflowElement wfe, DataContainer dataContainer) {
val fee = dataContainer.getFireEventEntryForWorkflowEvent(event, wfe)
return (fee.endWorkflow)
}
def static createUtils(String basePackageName) '''
package «basePackageName»;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
* Common functionality that is used throughout the project.
*/
* Common functionality that is used throughout the project.
*/
public class Utils {

/**
* Converts the standardized filter string received from the frontend to a valid
* WHERE clause that can be interpreted by the SQL parser
*
* Assumes an incoming string with conditions connected by 'and', 'or' and 'not'. Each
* condition may be an atomic boolean value 'true' or 'false' or a condition of the form
* fully.qualified.attribute.name (equals|greater|smaller|>=|<=) anyValue
*
* @param filter Filter string from the frontend.
* @return String in the common format for WHERE clauses that can be interpreted by the SQL parser.
*/
public static String buildWhereParameterFromFilterString(String filter) {

/**
* Converts the standardized filter string received from the frontend to a valid
* WHERE clause that can be interpreted by the SQL parser
*
* Assumes an incoming string with conditions connected by 'and', 'or' and 'not'. Each
* condition may be an atomic boolean value 'true' or 'false' or a condition of the form
* fully.qualified.attribute.name (equals|greater|smaller|>=|<=) anyValue
*
* @param filter Filter string from the frontend.
* @return String in the common format for WHERE clauses that can be interpreted by the SQL parser.
*/
public static String buildWhereParameterFromFilterString(String filter) {

if(filter == null)
return "";

// add one whitespace at the end of the filter string to facilitate the patterns in the
// following steps
filter = "(" + filter + ")";

// replace all double quotes by single quotes
filter = filter.replace("\"", "'");

// replace true by (1 = 1)
filter = filter.replaceAll("(\\s+|\\()true(\\s+|\\))", "$1(1 = 1)$2");

// replace false by (1 <> 1)
filter = filter.replaceAll("(\\s+|\\()false(\\s+|\\))", "$1(1 <> 1)$2");

// add a t. to all attributes and replace operators by internal ones
Pattern p = Pattern.compile("(\\s+|\\()(\\w+)\\s*(equals|greater|smaller|>=|<=)\\s*(\\S+)(\\s+|\\))");
Matcher m = p.matcher(filter);
StringBuffer s = new StringBuffer();
while(m.find()) {
m.appendReplacement(s, "$1 t.$2 " + transformOperator(m.group(3)) + " $4$5");
}
m.appendTail(s);

//System.out.println("WHERE clause: " + s.toString());

return "WHERE " + s.toString();
if(filter == null)
return "";
/*
// add one whitespace at the end of the filter string to facilitate the patterns in the
// following steps
filter = "(" + filter + ")";
// replace all double quotes by single quotes
filter = filter.replace("\"", "'");
// replace true by (1 = 1)
filter = filter.replaceAll("(\\s+|\\()true(\\s+|\\))", "$1(1 = 1)$2");
// replace false by (1 <> 1)
filter = filter.replaceAll("(\\s+|\\()false(\\s+|\\))", "$1(1 <> 1)$2");
// add a t. to all attributes and replace operators by internal ones
Pattern p = Pattern.compile("(\\s+|\\()(\\w+)\\s*(equals|greater|smaller|>=|<=)\\s*(\\S+)(\\s+|\\))");
Matcher m = p.matcher(filter);
StringBuffer s = new StringBuffer();
while(m.find()) {
m.appendReplacement(s, "$1 t.$2 " + transformOperator(m.group(3)) + " $4$5");
}
m.appendTail(s);
*/

private static String transformOperator(String op) {
if(op.equals("greater")) {
return ">";
}

if(op.equals("smaller")) {
return "<";
}

if(op.equals(">=")) {
return ">=";
}

if(op.equals("<=")) {
return "<=";
}

// default: equals
return "=";
//System.out.println("WHERE clause: " + s.toString());

//return "WHERE " + s.toString();
return "WHERE " + filter;
}

private static String transformOperator(String op) {
if(op.equals("greater")) {
return ">";
}

if(op.equals("smaller")) {
return "<";
}

if(op.equals(">=")) {
return ">=";
}

if(op.equals("<=")) {
return "<=";
}

// default: equals
return "=";
}
}

'''
def static createBackendApplication(String basePackageName) '''
package «basePackageName»;

import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;

@ApplicationPath("service")
public class BackendApplication extends Application {

}
package «basePackageName»;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
@ApplicationPath("service")
public class BackendApplication extends Application {
}
'''
}

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