org.apache.activemq.artemis.utils.TableOut Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of wildfly-client-all

This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

The newest version!

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.activemq.artemis.utils;

import java.io.PrintStream;
import java.util.ArrayList;

public class TableOut {

   final String separator;
   final int[] columnSizes;
   final int indentation;
   final String indentationString;

   public TableOut(String separator, int indentation, int[] columnSizes) {
      this.separator = separator;
      this.columnSizes = columnSizes;
      this.indentation = indentation;

      // building the indentation String to be reused
      StringBuilder indentBuilder = new StringBuilder();
      for (int i = 0; i < indentation; i++) {
         indentBuilder.append(' ');
      }
      indentationString = indentBuilder.toString();
   }

   public void print(PrintStream stream, String[] columns) {
      print(stream, columns, null);
   }

   public void print(PrintStream stream, String[] columns, boolean[] center) {
      ArrayList[] splitColumns = new ArrayList[columns.length];
      for (int i = 0; i < columns.length; i++) {
         splitColumns[i] = splitLine(columns[i], columnSizes[i]);
      }

      print(stream, splitColumns, center);
   }

   public void print(PrintStream stream, ArrayList[] splitColumns) {
      print(stream, splitColumns, null);
   }

   public void print(PrintStream stream, ArrayList[] splitColumns, boolean[] centralize) {
      boolean hasMoreLines;
      int lineNumber = 0;
      do {
         hasMoreLines = false;
         stream.print(separator);
         for (int column = 0; column < splitColumns.length; column++) {
            StringBuilder cell = new StringBuilder();

            String cellString;

            if (lineNumber < splitColumns[column].size()) {
               cellString = splitColumns[column].get(lineNumber);
            } else {
               cellString = "";
            }

            if (centralize != null && centralize[column] && cellString.length() > 0) {
               int centralAdd = (columnSizes[column] - cellString.length()) / 2;
               for (int i = 0; i < centralAdd; i++) {
                  cell.append(' ');
               }
            }

            cell.append(cellString);

            if (lineNumber + 1 < splitColumns[column].size()) {
               hasMoreLines = true;
            }
            while (cell.length() < columnSizes[column]) {
               cell.append(" ");
            }
            stream.print(cell);
            stream.print(separator);
         }
         stream.println();
         lineNumber++;
      }
      while (hasMoreLines);
   }

   public ArrayList splitLine(final String column, int size) {
      ArrayList cells = new ArrayList<>();

      for (int position = 0; position < column.length();) {
         int identationUsed;
         String identationStringUsed;
         if (position == 0 || indentation == 0) {
            identationUsed = 0;
            identationStringUsed = "";
         } else {
            identationUsed = indentation;
            identationStringUsed = this.indentationString;
         }
         int maxPosition = Math.min(size - identationUsed, column.length() - position);
         cells.add(identationStringUsed + column.substring(position, position + maxPosition));
         position += maxPosition;
      }

      return cells;
   }

}