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package org.glassfish.admin.rest.generator.client;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Collection;
import java.util.Locale;
import java.util.logging.Level;
import org.glassfish.admin.rest.Constants;
import org.glassfish.admin.rest.RestLogging;
import org.glassfish.admin.rest.utils.Util;
import org.glassfish.admin.rest.client.RestClientBase;
import org.glassfish.api.Param;
import org.glassfish.api.admin.CommandModel;
import org.glassfish.api.admin.CommandModel.ParamModel;
import org.jvnet.hk2.config.ConfigModel;
/**
*
* @author jdlee
*/
public class JavaClientClassWriter implements ClientClassWriter {
private String className;
private BufferedWriter source;
private static final String TMPL_CLASS_HEADER =
"package " + Constants.CLIENT_JAVA_PACKAGE +";\n" +
"import java.util.HashMap;\n" +
"import java.util.Map;\n" +
"import javax.ws.rs.client.Client;\n\n" +
"public class CLASSNAME extends RestClientBase {\n";
private static final String TMPL_CTOR_DOMAIN =
" private RestClient parent;\n" +
" public CLASSNAME (RestClient parent) {\n" +
" super(parent.client, null);\n" +
" this.parent = parent;\n" +
" }\n\n";
private static final String TMPL_CTOR_OTHER_WITH_KEY =
" private String name;\n" +
" protected CLASSNAME (Client c, RestClientBase p, String name) {\n" +
" super(c, p);\n" +
" this.name = name;\n" +
" }\n\n";
private static final String TMPL_CTOR_OTHER_NO_KEY =
" protected CLASSNAME (Client c, RestClientBase p) {\n" +
" super(c,p);\n" +
" }\n\n";
private static final String TMPL_GET_REST_URL = // TODO: Test this code heavily
" @Override\n" +
" protected String getRestUrl() {\n" +
" return super.getRestUrl()HASKEY;\n" +
" }\n\n";
private static final String TMPL_CTOR_SIMPLE =
"package " + Constants.CLIENT_JAVA_PACKAGE +";\n" +
"import javax.ws.rs.client.Client;\n\n" +
"public class CLASSNAME extends PARENTCLASS {\n" +
" protected CLASSNAME (Client c, RestClientBase p) {\n" +
" super(c,p);\n"+
" }\n\n";
private static final String TMPL_GET_SEGMENT =
" @Override protected String getSegment() {\n" +
" return \"/TAGNAME\";\n" +
" }\n\n";
private static final String TMPL_GETTERS_AND_SETTERS =
" public TYPE getMETHOD() {\n" +
" return getValue(\"FIELDNAME\", TYPE.class);\n" +
" }\n\n" +
" public void setMETHOD(TYPE value) {\n" +
" setValue(\"FIELDNAME\", value);\n" +
" }\n\n";
private static final String TMPL_COLLECTION_LEAF_RESOURCE =
" public CLASSNAME getCLASSNAME() {\n" +
" return new CLASSNAME (client, this);\n" +
" }\n\n";
private static final String TMPL_COMMAND =
" public RestResponse METHODNAME(SIG1) {\n" +
" return METHODNAME(PARAMS new HashMap<String, Object>());\n" +
" }\n\n" +
" public RestResponse METHODNAME(SIG2 Map<String, Object> additional) {\n" +
"METHODBODY" +
" }\n\n";
private static final String TMPL_METHOD_BODY =
" Map<String, Object> payload = new HashMap<String, Object>();\n" +
"PUTS" +
" payload.putAll(additional);\n" +
" return execute(Method.HTTPMETHOD, \"/RESOURCEPATH\", payload, NEEDSMULTIPART);\n";
public JavaClientClassWriter(final ConfigModel model, final String className, Class parent, File baseDirectory) {
this.className = className;
File packageDir = new File(baseDirectory, Constants.CLIENT_JAVA_PACKAGE_DIR);
packageDir.deleteOnExit();
boolean success = packageDir.exists() || packageDir.mkdirs();
if (!success) {
throw new RuntimeException("Unable to create output directory"); // i18n
}
File classFile = new File(packageDir, className + ".java");
try {
boolean createSuccess = classFile.createNewFile();
if (!createSuccess){
RestLogging.restLogger.log(Level.SEVERE, RestLogging.FILE_CREATION_FAILED, classFile.getName());
}
classFile.deleteOnExit();
source = new BufferedWriter(new FileWriter(classFile));
} catch (IOException ioe) {
throw new RuntimeException(ioe);
}
if (parent.isAssignableFrom(RestClientBase.class)) {
generateRestClientBaseChild(model);
} else {
generateSimpleCtor(parent.getName());
}
}
protected final void generateRestClientBaseChild(ConfigModel model) {
try {
boolean hasKey = (Util.getKeyAttributeName(model) != null);
boolean isDomain = className.equals("Domain");
source.append(TMPL_CLASS_HEADER.replace("CLASSNAME", className));
if (isDomain) {
source.append(TMPL_CTOR_DOMAIN.replace("CLASSNAME", className));
} else {
if (hasKey) {
source.append(TMPL_CTOR_OTHER_WITH_KEY.replace("CLASSNAME", className));
} else {
source.append(TMPL_CTOR_OTHER_NO_KEY.replace("CLASSNAME", className));
}
}
if (hasKey || isDomain) {
String method = TMPL_GET_REST_URL.replace("HASKEY", hasKey ? " + \"/\" + name" : "");
if (isDomain) {
method = method.replace("super.getRestUrl()", "parent.getRestUrl() + getSegment()");
}
source.append(method);
}
} catch (IOException ex) {
RestLogging.restLogger.log(Level.SEVERE, null, ex);
}
}
// TODO: The next two generated ctors are identical, other than the parent class
protected final void generateSimpleCtor(String parentClassName) {
try {
source.append(TMPL_CTOR_SIMPLE.replace("CLASSNAME", className).replace("PARENTCLASS", parentClassName));
} catch (IOException ex) {
RestLogging.restLogger.log(Level.SEVERE, null, ex);
}
}
@Override
public void generateGetSegment(String tagName) {
try {
source.append(TMPL_GET_SEGMENT.replace("TAGNAME", tagName));
} catch (IOException ex) {
RestLogging.restLogger.log(Level.SEVERE, null, ex);
}
}
@Override
public void generateCommandMethod(String methodName, String httpMethod, String resourcePath, CommandModel cm) {
try {
String parametersSignature = Util.getMethodParameterList(cm, true, false);
boolean needsMultiPart = parametersSignature.contains("java.io.File");
String parameters = Util.getMethodParameterList(cm, false, false);
String method = TMPL_COMMAND
.replace("METHODNAME", methodName)
.replace("SIG1", parametersSignature)
.replace("PARAMS", !parameters.isEmpty() ? (parameters + ",") : "")
.replace("SIG2", !parametersSignature.isEmpty() ? (parametersSignature + ",") : "")
.replace("METHODBODY", generateMethodBody(cm, httpMethod, resourcePath, false, needsMultiPart));
source.append(method);
} catch (IOException ex) {
RestLogging.restLogger.log(Level.SEVERE, null, ex);
}
}
@Override
public String generateMethodBody(CommandModel cm, String httpMethod, String resourcePath, boolean includeOptional, boolean needsMultiPart) {
StringBuilder sb = new StringBuilder();
Collection<ParamModel> params = cm.getParameters();
if ((params != null) && (!params.isEmpty())) {
for (ParamModel model : params) {
Param param = model.getParam();
boolean include = true;
if (param.optional() && !includeOptional) {
continue;
}
String key = (!param.alias().isEmpty()) ? param.alias() : model.getName();
String paramName = Util.eleminateHypen(model.getName());
String put = " payload.put(\"" + key + "\", _" + paramName +");\n";
sb.append(put);
}
}
return TMPL_METHOD_BODY.replace("PUTS", sb.toString())
.replace("HTTPMETHOD", httpMethod.toUpperCase(Locale.US))
.replace("RESOURCEPATH", resourcePath)
.replace("NEEDSMULTIPART", Boolean.toString(needsMultiPart));
}
@Override
public void generateGettersAndSetters(String type, String methodName, String fieldName) {
try {
source.append(TMPL_GETTERS_AND_SETTERS
.replace("METHOD", methodName)
.replace("TYPE", type)
.replace("FIELDNAME", fieldName));
} catch (IOException ex) {
RestLogging.restLogger.log(Level.SEVERE, null, ex);
}
}
@Override
public void createGetChildResource(ConfigModel model, String elementName, String childResourceClassName) {
try {
final String TMPL_GET_CHILD_RESOURCE =
" public CHILDRESOURCE getELEMENTNAME(HASKEY1) {\n" +
" CHILDRESOURCE child = new CHILDRESOURCE(client, this HASKEY2);\n" +
" child.initialize();\n" +
" return (child.status == 200) ? child : null;\n" +
" }\n";
final boolean hasKey = Util.getKeyAttributeName(model) != null;
source.append(TMPL_GET_CHILD_RESOURCE
.replace("CHILDRESOURCE", childResourceClassName)
.replace("HASKEY1", hasKey ? "String name" : "")
.replace("HASKEY2", hasKey ? ", name" : "")
.replace("ELEMENTNAME", elementName));
} catch (IOException ex) {
RestLogging.restLogger.log(Level.SEVERE, null, ex);
}
}
// TODO: Merge generateCollectionLeafResourceGetter() and generateRestLeafGetter(). Must find a meaningful name first.
@Override
public void generateCollectionLeafResourceGetter(String className) {
try {
source.append(TMPL_COLLECTION_LEAF_RESOURCE.replace("CLASSNAME", className));
} catch (IOException ex) {
RestLogging.restLogger.log(Level.SEVERE, null, ex);
}
}
@Override
public void generateRestLeafGetter(String className) {
try {
source.append(TMPL_COLLECTION_LEAF_RESOURCE.replace("CLASSNAME", className));
} catch (IOException ex) {
RestLogging.restLogger.log(Level.SEVERE, null, ex);
}
}
public void done() {
finishClass();
}
private void finishClass() {
try {
source.append("}");
} catch (IOException ioe) {
throw new RuntimeException(ioe);
} finally {
if (source != null) {
try {
source.close();
} catch (IOException ex) {
RestLogging.restLogger.log(Level.SEVERE, null, ex);
}
}
}
}
}