[BACKLOG-23233] - Calculator step : throw exception on non existing f…

…iles

core/src/main/java/org/pentaho/di/core/exception/KettleFileNotFoundException.java

@@ -0,0 +1,83 @@
+/*! ******************************************************************************
+ *
+ * Pentaho Data Integration
+ *
+ * Copyright (C) 2018 by Hitachi Vantara : http://www.pentaho.com
+ *
+ *******************************************************************************
+ *
+ * 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 org.pentaho.di.core.exception;
+
+/**
+ * Exception thrown when a files does not exists
+ */
+public class KettleFileNotFoundException extends KettleFileException {
+
+  private String filepath;
+
+  public String getFilepath() {
+    return filepath;
+  }
+
+  public void setFilepath( String filepath ) {
+    this.filepath = filepath;
+  }
+
+  public KettleFileNotFoundException() {
+    super();
+  }
+
+  /**
+   * Constructs a new throwable with the specified detail message.
+   *
+   * @param message
+   *          - the detail message. The detail message is saved for later retrieval by the getMessage() method.
+   */
+  public KettleFileNotFoundException( String message ) {
+    super( message );
+  }
+
+  public KettleFileNotFoundException( String message, String filepath ) {
+    super( message );
+    setFilepath( filepath );
+  }
+
+  /**
+   * Constructs a new throwable with the specified cause and a detail message of (cause==null ? null : cause.toString())
+   * (which typically contains the class and detail message of cause).
+   *
+   * @param cause
+   *          the cause (which is saved for later retrieval by the getCause() method). (A null value is permitted, and
+   *          indicates that the cause is nonexistent or unknown.)
+   */
+  public KettleFileNotFoundException( Throwable cause ) {
+    super( cause );
+  }
+
+  /**
+   * Constructs a new throwable with the specified detail message and cause.
+   *
+   * @param message
+   *          the detail message (which is saved for later retrieval by the getMessage() method).
+   * @param cause
+   *          the cause (which is saved for later retrieval by the getCause() method). (A null value is permitted, and
+   *          indicates that the cause is nonexistent or unknown.)
+   */
+  public KettleFileNotFoundException( String message, Throwable cause ) {
+    super( message, cause );
+  }
+}