org.eclipse.tracecompass.tmf.remote.core/src/org/eclipse/tracecompass/internal/tmf/remote/core/shell/CommandInput.java

   1 /**********************************************************************
   2  * Copyright (c) 2015 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Bernd Hufmann - Initial API and implementation
  11  **********************************************************************/
  12 package org.eclipse.tracecompass.internal.tmf.remote.core.shell;
  13
  14 import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull;
  15 import static org.eclipse.tracecompass.common.core.NonNullUtils.nullToEmptyString;
  16
  17 import java.util.ArrayList;
  18 import java.util.List;
  19
  20 import org.eclipse.jdt.annotation.Nullable;
  21 import org.eclipse.tracecompass.tmf.remote.core.shell.ICommandInput;
  22
  23 import com.google.common.collect.ImmutableList;
  24
  25 /**
  26  * Class for defining command input for remote command execution.
  27  *
  28  * @author Bernd Hufmann
  29  */
  30 public class CommandInput implements ICommandInput {
  31
  32     // ------------------------------------------------------------------------
  33     // Attributes
  34     // ------------------------------------------------------------------------
  35     /** The input as list of Strings. */
  36     private final List<String> fInput = new ArrayList<>();
  37
  38     // ------------------------------------------------------------------------
  39     // Accessors
  40     // ------------------------------------------------------------------------
  41
  42     @Override
  43     public List<String> getInput() {
  44         return checkNotNull(ImmutableList.copyOf(fInput));
  45     }
  46
  47     // ------------------------------------------------------------------------
  48     // Operations
  49     // ------------------------------------------------------------------------
  50     @Override
  51     public void add(@Nullable String segment) {
  52         if (segment != null) {
  53             fInput.add(segment);
  54         }
  55     }
  56
  57     @Override
  58     public void addAll(List<String> segments) {
  59         for (String segment : segments) {
  60             add(segment);
  61         }
  62     }
  63
  64     /**
  65      * Creates a single command string from a command line list.
  66      *
  67      * @return single command string
  68      */
  69     @Override
  70     public String toString() {
  71         StringBuilder builder = new StringBuilder();
  72         for (String segment : getInput()) {
  73             builder.append(segment).append(' ');
  74         }
  75         return nullToEmptyString(builder.toString().trim());
  76     }
  77 }