fixed null error

yecz · Aug 3, 2020 · 3b9688d · 3b9688d
1 parent 4592158
commit 3b9688d
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Showing 6 changed files with 912 additions and 917 deletions.
diff --git a/kafka-eagle-common/src/main/java/org/smartloli/kafka/eagle/common/util/StrUtils.java b/kafka-eagle-common/src/main/java/org/smartloli/kafka/eagle/common/util/StrUtils.java
@@ -6,9 +6,9 @@
  * 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
- *
+ * <p>
  * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
  * 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.
@@ -17,136 +17,166 @@
  */
 package org.smartloli.kafka.eagle.common.util;
 
+import com.alibaba.fastjson.JSONObject;
+
 import java.text.DecimalFormat;
 import java.util.ArrayList;
 import java.util.List;
 
-import com.alibaba.fastjson.JSONObject;
-
 /**
  * String conversion tool and null convert.
- * 
- * @author smartloli.
  *
- *         Created by May 21, 2017
+ * @author smartloli.
+ * <p>
+ * Created by May 21, 2017
  */
 public class StrUtils {
 
-	private final static long KB_IN_BYTES = 1024;
-
-	private final static long MB_IN_BYTES = 1024 * KB_IN_BYTES;
-
-	private final static long GB_IN_BYTES = 1024 * MB_IN_BYTES;
-
-	private final static long TB_IN_BYTES = 1024 * GB_IN_BYTES;
-
-	private final static DecimalFormat df = new DecimalFormat("0.00");
-
-	private static String SYSTEM_ENCODING = System.getProperty("file.encoding");
-
-	static {
-		if (SYSTEM_ENCODING == null) {
-			SYSTEM_ENCODING = "UTF-8";
-		}
-	}
-
-	private StrUtils() {
-	}
-
-	/** Formatter byte to kb,mb or gb etc. */
-	public static String stringify(long byteNumber) {
-		if (byteNumber / TB_IN_BYTES > 0) {
-			return df.format((double) byteNumber / (double) TB_IN_BYTES) + "TB";
-		} else if (byteNumber / GB_IN_BYTES > 0) {
-			return df.format((double) byteNumber / (double) GB_IN_BYTES) + "GB";
-		} else if (byteNumber / MB_IN_BYTES > 0) {
-			return df.format((double) byteNumber / (double) MB_IN_BYTES) + "MB";
-		} else if (byteNumber / KB_IN_BYTES > 0) {
-			return df.format((double) byteNumber / (double) KB_IN_BYTES) + "KB";
-		} else {
-			return String.valueOf(byteNumber) + "B";
-		}
-	}
-
-	/** Formatter byte to kb,mb or gb etc. */
-	public static JSONObject stringifyByObject(long byteNumber) {
-		JSONObject object = new JSONObject();
-		if (byteNumber / TB_IN_BYTES > 0) {
-			object.put("size", df.format((double) byteNumber / (double) TB_IN_BYTES));
-			object.put("type", "TB");
-			return object;
-		} else if (byteNumber / GB_IN_BYTES > 0) {
-			object.put("size", df.format((double) byteNumber / (double) GB_IN_BYTES));
-			object.put("type", "GB");
-			return object;
-		} else if (byteNumber / MB_IN_BYTES > 0) {
-			object.put("size", df.format((double) byteNumber / (double) MB_IN_BYTES));
-			object.put("type", "MB");
-			return object;
-		} else if (byteNumber / KB_IN_BYTES > 0) {
-			object.put("size", df.format((double) byteNumber / (double) KB_IN_BYTES));
-			object.put("type", "KB");
-			return object;
-		} else {
-			object.put("size", String.valueOf(byteNumber));
-			object.put("type", "B");
-			return object;
-		}
-	}
-
-	/** Formmatter number. */
-	public static double numberic(String number) {
-		DecimalFormat formatter = new DecimalFormat("###.##");
-		return Double.valueOf(formatter.format(Double.valueOf(number)));
-	}
-
-	/** Formmatter number. */
-	public static double numberic(String number, String format) {
-		DecimalFormat formatter = new DecimalFormat(format);
-		return Double.valueOf(formatter.format(Double.valueOf(number)));
-	}
-
-	/** Convert string number to double. */
-	public static long integer(double number) {
-		return Math.round(number);
-	}
-
-	/** Assembly number to string. */
-	public static String assembly(String number) {
-		return stringify(integer(numberic(number)));
-	}
-
-	/** whether it is empty. */
-	public static boolean isNull(String value) {
-		if (value == null || value.length() == 0 || "".equals(value)) {
-			return true;
-		}
-		return false;
-	}
-
-	/** whether list is empty. */
-	public static boolean isListNull(String value) {
-		if ("[]".equals(value)) {
-			return true;
-		}
-		return false;
-	}
-
-	/** Convert null to string. */
-	public static String convertNull(String value) {
-		if (isNull(value)) {
-			return "";
-		}
-		return value;
-	}
-
-	/** Convert strings to integers. */
-	public static List<Integer> stringsConvertIntegers(String[] values) {
-		List<Integer> integers = new ArrayList<Integer>();
-		for (String value : values) {
-			integers.add(Integer.parseInt(value.trim()));
-		}
-		return integers;
-	}
+    private final static long KB_IN_BYTES = 1024;
+
+    private final static long MB_IN_BYTES = 1024 * KB_IN_BYTES;
+
+    private final static long GB_IN_BYTES = 1024 * MB_IN_BYTES;
+
+    private final static long TB_IN_BYTES = 1024 * GB_IN_BYTES;
+
+    private final static DecimalFormat df = new DecimalFormat("0.00");
+
+    private static String SYSTEM_ENCODING = System.getProperty("file.encoding");
+
+    static {
+        if (SYSTEM_ENCODING == null) {
+            SYSTEM_ENCODING = "UTF-8";
+        }
+    }
+
+    private StrUtils() {
+    }
+
+    /**
+     * Formatter byte to kb,mb or gb etc.
+     */
+    public static String stringify(long byteNumber) {
+        if (byteNumber / TB_IN_BYTES > 0) {
+            return df.format((double) byteNumber / (double) TB_IN_BYTES) + "TB";
+        } else if (byteNumber / GB_IN_BYTES > 0) {
+            return df.format((double) byteNumber / (double) GB_IN_BYTES) + "GB";
+        } else if (byteNumber / MB_IN_BYTES > 0) {
+            return df.format((double) byteNumber / (double) MB_IN_BYTES) + "MB";
+        } else if (byteNumber / KB_IN_BYTES > 0) {
+            return df.format((double) byteNumber / (double) KB_IN_BYTES) + "KB";
+        } else {
+            return String.valueOf(byteNumber) + "B";
+        }
+    }
+
+    /**
+     * Formatter byte to kb,mb or gb etc.
+     */
+    public static JSONObject stringifyByObject(long byteNumber) {
+        JSONObject object = new JSONObject();
+        if (byteNumber / TB_IN_BYTES > 0) {
+            object.put("size", df.format((double) byteNumber / (double) TB_IN_BYTES));
+            object.put("type", "TB");
+            return object;
+        } else if (byteNumber / GB_IN_BYTES > 0) {
+            object.put("size", df.format((double) byteNumber / (double) GB_IN_BYTES));
+            object.put("type", "GB");
+            return object;
+        } else if (byteNumber / MB_IN_BYTES > 0) {
+            object.put("size", df.format((double) byteNumber / (double) MB_IN_BYTES));
+            object.put("type", "MB");
+            return object;
+        } else if (byteNumber / KB_IN_BYTES > 0) {
+            object.put("size", df.format((double) byteNumber / (double) KB_IN_BYTES));
+            object.put("type", "KB");
+            return object;
+        } else {
+            object.put("size", String.valueOf(byteNumber));
+            object.put("type", "B");
+            return object;
+        }
+    }
+
+    /**
+     * Formmatter number.
+     */
+    public static double numberic(String number) {
+        DecimalFormat formatter = new DecimalFormat("###.##");
+        return Double.valueOf(formatter.format(Double.valueOf(number)));
+    }
+
+    /**
+     * Formmatter number.
+     */
+    public static double numberic(String number, String format) {
+        DecimalFormat formatter = new DecimalFormat(format);
+        return Double.valueOf(formatter.format(Double.valueOf(number)));
+    }
+
+    /**
+     * Convert string number to double.
+     */
+    public static long integer(double number) {
+        return Math.round(number);
+    }
+
+    /**
+     * Assembly number to string.
+     */
+    public static String assembly(String number) {
+        return stringify(integer(numberic(number)));
+    }
+
+    /**
+     * whether string is empty.
+     */
+    public static boolean isNull(String value) {
+        if (value == null || value.length() == 0 || "".equals(value)) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * whether string[] is empty.
+     */
+    public static boolean isNull(String[] value) {
+        if (value == null || value.length == 0) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * whether list is empty.
+     */
+    public static boolean isListNull(String value) {
+        if ("[]".equals(value)) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Convert null to string.
+     */
+    public static String convertNull(String value) {
+        if (isNull(value)) {
+            return "";
+        }
+        return value;
+    }
+
+    /**
+     * Convert strings to integers.
+     */
+    public static List<Integer> stringsConvertIntegers(String[] values) {
+        List<Integer> integers = new ArrayList<Integer>();
+        for (String value : values) {
+            integers.add(Integer.parseInt(value.trim()));
+        }
+        return integers;
+    }
 
 }