Add OPTIONAL variables: URL, URI, GLOBAL_FILE, USER_FILE (#3767)

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/GlobalFileParserValidator.java

@@ -38,6 +38,10 @@ public class GlobalFileParserValidator extends BaseParserValidator<String> {
         super(model, ModelType.GLOBAL_FILE);
     }
 
+    public GlobalFileParserValidator(String model, ModelType type) throws ModelSyntaxException {
+        super(model, type);
+    }
+
     @Override
     protected Converter<String> createConverter(String model) throws ModelSyntaxException {
         return new IdentityConverter();

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/ModelType.java

@@ -25,8 +25,6 @@
  */
 package org.ow2.proactive.scheduler.common.job.factories.spi.model.factory;
 
-import java.net.URI;
-import java.net.URL;
 import java.util.Date;
 
 
@@ -50,12 +48,16 @@ public enum ModelType {
     REGEXP(RegexpParserValidator.class, String.class),
     SHORT(ShortParserValidator.class, Short.class),
     SPEL(SPELParserValidator.class, String.class),
-    URI(URIParserValidator.class, URI.class),
-    URL(URLParserValidator.class, URL.class),
+    URI(URIParserValidator.class, String.class),
+    OPTIONAL_URI(OptionalURIParserValidator.class, String.class),
+    URL(URLParserValidator.class, String.class),
+    OPTIONAL_URL(OptionalURLParserValidator.class, String.class),
     HIDDEN(HiddenParserValidator.class, String.class),
     CREDENTIAL(CredentialParserValidator.class, String.class),
-    USER_FILE(UserFileParserValidator.class, URI.class),
-    GLOBAL_FILE(GlobalFileParserValidator.class, URI.class);
+    USER_FILE(UserFileParserValidator.class, String.class),
+    OPTIONAL_USER_FILE(OptionalUserFileParserValidator.class, String.class),
+    GLOBAL_FILE(GlobalFileParserValidator.class, String.class),
+    OPTIONAL_GLOBAL_FILE(OptionalGlobalFileParserValidator.class, String.class);
 
     // The parser validator of the model type
     private Class typeParserValidator;

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/OptionalGlobalFileParserValidator.java

+/*
+ * ProActive Parallel Suite(TM):
+ * The Open Source library for parallel and distributed
+ * Workflows & Scheduling, Orchestration, Cloud Automation
+ * and Big Data Analysis on Enterprise Grids & Clouds.
+ *
+ * Copyright (c) 2007 - 2017 ActiveEon
+ * Contact: contact@activeeon.com
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation: version 3 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * If needed, contact us to obtain a release under GPL Version 2 or 3
+ * or a different license than the AGPL.
+ */
+package org.ow2.proactive.scheduler.common.job.factories.spi.model.factory;
+
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.Converter;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ModelSyntaxException;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.GlobalFileValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.OptionalValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.Validator;
+
+
+public class OptionalGlobalFileParserValidator extends GlobalFileParserValidator {
+    public OptionalGlobalFileParserValidator(String model) throws ModelSyntaxException {
+        super(model, ModelType.OPTIONAL_GLOBAL_FILE);
+    }
+
+    @Override
+    protected Validator<String> createValidator(String model, Converter<String> converter) {
+        return new OptionalValidator<>(new GlobalFileValidator());
+    }
+}

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/OptionalURIParserValidator.java

+/*
+ * ProActive Parallel Suite(TM):
+ * The Open Source library for parallel and distributed
+ * Workflows & Scheduling, Orchestration, Cloud Automation
+ * and Big Data Analysis on Enterprise Grids & Clouds.
+ *
+ * Copyright (c) 2007 - 2017 ActiveEon
+ * Contact: contact@activeeon.com
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation: version 3 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * If needed, contact us to obtain a release under GPL Version 2 or 3
+ * or a different license than the AGPL.
+ */
+package org.ow2.proactive.scheduler.common.job.factories.spi.model.factory;
+
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.Converter;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ModelSyntaxException;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.OptionalValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.URIValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.Validator;
+
+
+public class OptionalURIParserValidator extends URIParserValidator {
+
+    public OptionalURIParserValidator(String model) throws ModelSyntaxException {
+        super(model, ModelType.OPTIONAL_URI);
+    }
+
+    @Override
+    protected Validator<String> createValidator(String model, Converter<String> converter) {
+        return new OptionalValidator<>(new URIValidator());
+    }
+}

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/OptionalURLParserValidator.java

+/*
+ * ProActive Parallel Suite(TM):
+ * The Open Source library for parallel and distributed
+ * Workflows & Scheduling, Orchestration, Cloud Automation
+ * and Big Data Analysis on Enterprise Grids & Clouds.
+ *
+ * Copyright (c) 2007 - 2017 ActiveEon
+ * Contact: contact@activeeon.com
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation: version 3 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * If needed, contact us to obtain a release under GPL Version 2 or 3
+ * or a different license than the AGPL.
+ */
+package org.ow2.proactive.scheduler.common.job.factories.spi.model.factory;
+
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.Converter;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ModelSyntaxException;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.OptionalValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.URLValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.Validator;
+
+
+public class OptionalURLParserValidator extends URLParserValidator {
+
+    public OptionalURLParserValidator(String model) throws ModelSyntaxException {
+        super(model, ModelType.OPTIONAL_URL);
+    }
+
+    @Override
+    protected Validator<String> createValidator(String model, Converter<String> converter) {
+        return new OptionalValidator<>(new URLValidator());
+    }
+}

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/OptionalUserFileParserValidator.java

+/*
+ * ProActive Parallel Suite(TM):
+ * The Open Source library for parallel and distributed
+ * Workflows & Scheduling, Orchestration, Cloud Automation
+ * and Big Data Analysis on Enterprise Grids & Clouds.
+ *
+ * Copyright (c) 2007 - 2017 ActiveEon
+ * Contact: contact@activeeon.com
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation: version 3 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * If needed, contact us to obtain a release under GPL Version 2 or 3
+ * or a different license than the AGPL.
+ */
+package org.ow2.proactive.scheduler.common.job.factories.spi.model.factory;
+
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.Converter;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ModelSyntaxException;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.OptionalValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.UserFileValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.Validator;
+
+
+public class OptionalUserFileParserValidator extends UserFileParserValidator {
+
+    public OptionalUserFileParserValidator(String model) throws ModelSyntaxException {
+        super(model, ModelType.OPTIONAL_USER_FILE);
+    }
+
+    @Override
+    protected Validator<String> createValidator(String model, Converter<String> converter) {
+        return new OptionalValidator<>(new UserFileValidator());
+    }
+}

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/URIParserValidator.java

@@ -25,28 +25,30 @@
  */
 package org.ow2.proactive.scheduler.common.job.factories.spi.model.factory;
 
-import java.net.URI;
-
 import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.Converter;
-import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.URIConverter;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.IdentityConverter;
 import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ModelSyntaxException;
-import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.AcceptAllValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.URIValidator;
 import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.Validator;
 
 
-public class URIParserValidator extends BaseParserValidator<URI> {
+public class URIParserValidator extends BaseParserValidator<String> {
 
     public URIParserValidator(String model) throws ModelSyntaxException {
         super(model, ModelType.URI);
     }
 
+    public URIParserValidator(String model, ModelType type) throws ModelSyntaxException {
+        super(model, type);
+    }
+
     @Override
-    protected Converter<URI> createConverter(String model) throws ModelSyntaxException {
-        return new URIConverter();
+    protected Converter<String> createConverter(String model) throws ModelSyntaxException {
+        return new IdentityConverter();
     }
 
     @Override
-    protected Validator<URI> createValidator(String model, Converter<URI> converter) throws ModelSyntaxException {
-        return new AcceptAllValidator<>();
+    protected Validator<String> createValidator(String model, Converter<String> converter) {
+        return new URIValidator();
     }
 }

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/URLParserValidator.java

@@ -25,28 +25,30 @@
  */
 package org.ow2.proactive.scheduler.common.job.factories.spi.model.factory;
 
-import java.net.URL;
-
 import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.Converter;
-import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.URLConverter;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.converter.IdentityConverter;
 import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ModelSyntaxException;
-import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.AcceptAllValidator;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.URLValidator;
 import org.ow2.proactive.scheduler.common.job.factories.spi.model.validator.Validator;
 
 
-public class URLParserValidator extends BaseParserValidator<URL> {
+public class URLParserValidator extends BaseParserValidator<String> {
 
     public URLParserValidator(String model) throws ModelSyntaxException {
         super(model, ModelType.URL);
     }
 
+    public URLParserValidator(String model, ModelType type) throws ModelSyntaxException {
+        super(model, type);
+    }
+
     @Override
-    protected Converter<URL> createConverter(String model) throws ModelSyntaxException {
-        return new URLConverter();
+    protected Converter<String> createConverter(String model) throws ModelSyntaxException {
+        return new IdentityConverter();
     }
 
     @Override
-    protected Validator<URL> createValidator(String model, Converter<URL> converter) throws ModelSyntaxException {
-        return new AcceptAllValidator<>();
+    protected Validator<String> createValidator(String model, Converter<String> converter) {
+        return new URLValidator();
     }
 }

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/UserFileParserValidator.java

@@ -38,6 +38,10 @@ public class UserFileParserValidator extends BaseParserValidator<String> {
         super(model, ModelType.USER_FILE);
     }
 
+    public UserFileParserValidator(String model, ModelType type) throws ModelSyntaxException {
+        super(model, type);
+    }
+
     @Override
     protected Converter<String> createConverter(String model) throws ModelSyntaxException {
         return new IdentityConverter();

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/validator/OptionalValidator.java

+/*
+ * ProActive Parallel Suite(TM):
+ * The Open Source library for parallel and distributed
+ * Workflows & Scheduling, Orchestration, Cloud Automation
+ * and Big Data Analysis on Enterprise Grids & Clouds.
+ *
+ * Copyright (c) 2007 - 2017 ActiveEon
+ * Contact: contact@activeeon.com
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation: version 3 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * If needed, contact us to obtain a release under GPL Version 2 or 3
+ * or a different license than the AGPL.
+ */
+package org.ow2.proactive.scheduler.common.job.factories.spi.model.validator;
+
+import org.apache.commons.lang3.StringUtils;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.ModelValidatorContext;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ValidationException;
+
+
+/**
+ * Validate all the blank parameter value. When the value is not blank, use its specific validator to check the value validity.
+ * @param <T>
+ */
+public class OptionalValidator<T> implements Validator<T> {
+    Validator<T> validator;
+
+    public OptionalValidator(Validator<T> validator) {
+        this.validator = validator;
+    }
+
+    @Override
+    public T validate(T parameterValue, ModelValidatorContext context) throws ValidationException {
+        // When the parameter value is not provided, it's validated. Otherwise, use its proper validator
+        if (StringUtils.isBlank(parameterValue.toString())) {
+            return parameterValue;
+        } else {
+            return validator.validate(parameterValue, context);
+        }
+    }
+}

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/converter/URIConverter.java → scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/validator/URIValidator.java

@@ -23,21 +23,27 @@
  * If needed, contact us to obtain a release under GPL Version 2 or 3
  * or a different license than the AGPL.
  */
-package org.ow2.proactive.scheduler.common.job.factories.spi.model.converter;
+package org.ow2.proactive.scheduler.common.job.factories.spi.model.validator;
 
 import java.net.URI;
 import java.net.URISyntaxException;
 
-import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ConversionException;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.ModelValidatorContext;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ValidationException;
 
 
-public class URIConverter implements Converter<URI> {
+/**
+ * @author ActiveEon Team
+ * @since 19/08/19s
+ */
+public class URIValidator implements Validator<String> {
+
     @Override
-    public URI convert(String parameterValue) throws ConversionException {
+    public String validate(String parameterValue, ModelValidatorContext context) throws ValidationException {
         try {
-            return new URI(parameterValue);
+            return new URI(parameterValue).toString();
         } catch (URISyntaxException e) {
-            throw new ConversionException(parameterValue, URI.class, e.getMessage(), e);
+            throw new ValidationException(parameterValue + " is not a valid URI.", e);
         }
     }
 }

scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/converter/URLConverter.java → scheduler/scheduler-api/src/main/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/validator/URLValidator.java

@@ -23,21 +23,27 @@
  * If needed, contact us to obtain a release under GPL Version 2 or 3
  * or a different license than the AGPL.
  */
-package org.ow2.proactive.scheduler.common.job.factories.spi.model.converter;
+package org.ow2.proactive.scheduler.common.job.factories.spi.model.validator;
 
 import java.net.MalformedURLException;
 import java.net.URL;
 
-import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ConversionException;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.ModelValidatorContext;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ValidationException;
 
 
-public class URLConverter implements Converter<URL> {
+/**
+ * @author ActiveEon Team
+ * @since 19/08/19s
+ */
+public class URLValidator implements Validator<String> {
+
     @Override
-    public URL convert(String parameterValue) throws ConversionException {
+    public String validate(String parameterValue, ModelValidatorContext context) throws ValidationException {
         try {
-            return new URL(parameterValue);
+            return new URL(parameterValue).toString();
         } catch (MalformedURLException e) {
-            throw new ConversionException(parameterValue, URL.class, e.getMessage(), e);
+            throw new ValidationException(parameterValue + " is not a valid URL.", e);
         }
     }
 }

scheduler/scheduler-api/src/test/java/org/ow2/proactive/scheduler/common/job/factories/spi/model/factory/GlobalFileParserValidatorTest.java

+/*
+ * ProActive Parallel Suite(TM):
+ * The Open Source library for parallel and distributed
+ * Workflows & Scheduling, Orchestration, Cloud Automation
+ * and Big Data Analysis on Enterprise Grids & Clouds.
+ *
+ * Copyright (c) 2007 - 2017 ActiveEon
+ * Contact: contact@activeeon.com
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation: version 3 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * If needed, contact us to obtain a release under GPL Version 2 or 3
+ * or a different license than the AGPL.
+ */
+package org.ow2.proactive.scheduler.common.job.factories.spi.model.factory;
+
+import static org.mockito.Mockito.when;
+import static org.ow2.proactive.scheduler.common.SchedulerConstants.GLOBALSPACE_NAME;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.ow2.proactive.scheduler.common.SchedulerSpaceInterface;
+import org.ow2.proactive.scheduler.common.exception.NotConnectedException;
+import org.ow2.proactive.scheduler.common.exception.PermissionException;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.ModelValidatorContext;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ConversionException;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ModelSyntaxException;
+import org.ow2.proactive.scheduler.common.job.factories.spi.model.exceptions.ValidationException;
+
+
+public class GlobalFileParserValidatorTest {
+    final String existGlobalFilePath = "global folder/exist-file.txt";
+
+    final String notExistGlobalFilePath = "not-exist-file.png";
+
+    @Mock
+    private ModelValidatorContext context;
+
+    @Mock
+    private SchedulerSpaceInterface schedulerSpaceInterface;
+
+    @Before
+    public void init() throws NotConnectedException, PermissionException {
+        MockitoAnnotations.initMocks(this);
+        when(context.getSpace()).thenReturn(schedulerSpaceInterface);
+        when(schedulerSpaceInterface.checkFileExists(GLOBALSPACE_NAME, existGlobalFilePath)).thenReturn(true);
+        when(schedulerSpaceInterface.checkFileExists(GLOBALSPACE_NAME, notExistGlobalFilePath)).thenReturn(false);
+    }
+
+    @Test
+    public void testThatValidGlobalFileIsOk() throws ModelSyntaxException, ValidationException, ConversionException {
+        String value = existGlobalFilePath;
+        GlobalFileParserValidator parserValidator = new GlobalFileParserValidator(ModelType.GLOBAL_FILE.name());
+        Assert.assertEquals(value, parserValidator.parseAndValidate(value, context));
+    }
+
+    @Test(expected = ValidationException.class)
+    public void testThatInvalidGlobalFileThrowException()
+            throws ModelSyntaxException, ValidationException, ConversionException {
+        GlobalFileParserValidator parserValidator = new GlobalFileParserValidator(ModelType.GLOBAL_FILE.name());
+        parserValidator.parseAndValidate(notExistGlobalFilePath, context);
+    }
+
+    @Test(expected = ValidationException.class)
+    public void testThatEmptyGlobalFileThrowException()
+            throws ModelSyntaxException, ValidationException, ConversionException {
+        String value = "";
+        GlobalFileParserValidator parserValidator = new GlobalFileParserValidator(ModelType.GLOBAL_FILE.name());
+        parserValidator.parseAndValidate(value, context);
+    }
+
+    // when context is not specified, the parserValidator is expected to not check global file existence.
+    @Test
+    public void testThatGivenNoContextEmptyGlobalFileIsOK()
+            throws ModelSyntaxException, ValidationException, ConversionException {
+        String value = "";
+        GlobalFileParserValidator parserValidator = new GlobalFileParserValidator(ModelType.GLOBAL_FILE.name());
+        Assert.assertEquals(value, parserValidator.parseAndValidate(value, null));