tmf/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.NonNull;
  21 import org.eclipse.jdt.annotation.Nullable;
  22 import org.eclipse.tracecompass.tmf.remote.core.shell.ICommandInput;
  23
  24 import com.google.common.collect.ImmutableList;
  25
  26 /**
  27  * Class for defining command input for remote command execution.
  28  *
  29  * @author Bernd Hufmann
  30  */
  31 public class CommandInput implements ICommandInput {
  32
  33     // ------------------------------------------------------------------------
  34     // Attributes
  35     // ------------------------------------------------------------------------
  36
  37     /** The input as list of Strings. */
  38     private final @NonNull List<@NonNull String> fInput = new ArrayList<>();
  39
  40     // ------------------------------------------------------------------------
  41     // Accessors
  42     // ------------------------------------------------------------------------
  43
  44     @Override
  45     public List<String> getInput() {
  46         return checkNotNull(ImmutableList.copyOf(fInput));
  47     }
  48
  49     // ------------------------------------------------------------------------
  50     // Operations
  51     // ------------------------------------------------------------------------
  52
  53     @Override
  54     public void add(@Nullable String segment) {
  55         if (segment != null) {
  56             fInput.add(segment);
  57         }
  58     }
  59
  60     @Override
  61     public void addAll(List<String> segments) {
  62         for (String segment : segments) {
  63             add(segment);
  64         }
  65     }
  66
  67     /**
  68      * Creates a single command string from a command line list.
  69      *
  70      * @return single command string
  71      */
  72     @Override
  73     public String toString() {
  74         StringBuilder builder = new StringBuilder();
  75         for (String segment : getInput()) {
  76             builder.append(segment).append(' ');
  77         }
  78         return nullToEmptyString(builder.toString().trim());
  79     }
  80 }