org.apache.logging.log4j/log4j-api/2.12.0 : org/apache/logging/log4j/util/Strings.class

Strings
https://logging.apache.org/log4j/2.x/log4j-api/: The Apache Log4j API (The Apache Software Foundation)
Apache License, Version 2.0
Murad Ersoy
Ralph Goers (Nextiva)
Gary Gregory (Rocket Software)
Scott Deboy
Remko Popma
Nick Williams
Matt Sicker (CloudBees)
Bruce Brouwer
Mikael Ståldal (Spotify)
Carter Kozak
public final class org.apache.logging.log4j.util.Strings
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.logging.log4j.util.Strings
  super_class: java.lang.Object
{
  public static final java.lang.String EMPTY;
    descriptor: Ljava/lang/String;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: ""

  public static final java.lang.String LINE_SEPARATOR;
    descriptor: Ljava/lang/String;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 39
            invokestatic org.apache.logging.log4j.util.PropertiesUtil.getProperties:()Lorg/apache/logging/log4j/util/PropertiesUtil;
            ldc "line.separator"
         1: .line 40
            ldc "\n"
         2: .line 39
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getStringProperty:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
            putstatic org.apache.logging.log4j.util.Strings.LINE_SEPARATOR:Ljava/lang/String;
         3: .line 40
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public static java.lang.String dquote(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.lang.String str
         0: .line 49
            new java.lang.StringBuilder
            dup
            bipush 34
            invokestatic java.lang.String.valueOf:(C)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* str */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            bipush 34
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // java.lang.String str
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0   str  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      str   final

  public static boolean isBlank(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.String s
         0: .line 60
            aload 0 /* s */
            ifnull 1
            aload 0 /* s */
            invokevirtual java.lang.String.trim:()Ljava/lang/String;
            invokevirtual java.lang.String.isEmpty:()Z
            ifne 1
            iconst_0
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_1
            ireturn
        end local 0 // java.lang.String s
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0     s  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      s     final

  public static boolean isEmpty(java.lang.CharSequence);
    descriptor: (Ljava/lang/CharSequence;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.CharSequence cs
         0: .line 89
            aload 0 /* cs */
            ifnull 1
            aload 0 /* cs */
            invokeinterface java.lang.CharSequence.length:()I
            ifeq 1
            iconst_0
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_1
            ireturn
        end local 0 // java.lang.CharSequence cs
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0    cs  Ljava/lang/CharSequence;
    MethodParameters:
      Name  Flags
      cs    final

  public static boolean isNotBlank(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.String s
         0: .line 99
            aload 0 /* s */
            invokestatic org.apache.logging.log4j.util.Strings.isBlank:(Ljava/lang/String;)Z
            ifeq 1
            iconst_0
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_1
      StackMap locals:
      StackMap stack: int
         2: ireturn
        end local 0 // java.lang.String s
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0     s  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      s     final

  public static boolean isNotEmpty(java.lang.CharSequence);
    descriptor: (Ljava/lang/CharSequence;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.CharSequence cs
         0: .line 123
            aload 0 /* cs */
            invokestatic org.apache.logging.log4j.util.Strings.isEmpty:(Ljava/lang/CharSequence;)Z
            ifeq 1
            iconst_0
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_1
      StackMap locals:
      StackMap stack: int
         2: ireturn
        end local 0 // java.lang.CharSequence cs
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0    cs  Ljava/lang/CharSequence;
    MethodParameters:
      Name  Flags
      cs    final

  public static java.lang.String join(java.lang.Iterable<?>, char);
    descriptor: (Ljava/lang/Iterable;C)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.lang.Iterable iterable
        start local 1 // char separator
         0: .line 138
            aload 0 /* iterable */
            ifnonnull 2
         1: .line 139
            aconst_null
            areturn
         2: .line 141
      StackMap locals:
      StackMap stack:
            aload 0 /* iterable */
            invokeinterface java.lang.Iterable.iterator:()Ljava/util/Iterator;
            iload 1 /* separator */
            invokestatic org.apache.logging.log4j.util.Strings.join:(Ljava/util/Iterator;C)Ljava/lang/String;
            areturn
        end local 1 // char separator
        end local 0 // java.lang.Iterable iterable
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0   iterable  Ljava/lang/Iterable<*>;
            0    3     1  separator  C
    Signature: (Ljava/lang/Iterable<*>;C)Ljava/lang/String;
    MethodParameters:
           Name  Flags
      iterable   final
      separator  final

  public static java.lang.String join(java.util.Iterator<?>, char);
    descriptor: (Ljava/util/Iterator;C)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=5, args_size=2
        start local 0 // java.util.Iterator iterator
        start local 1 // char separator
         0: .line 158
            aload 0 /* iterator */
            ifnonnull 2
         1: .line 159
            aconst_null
            areturn
         2: .line 161
      StackMap locals:
      StackMap stack:
            aload 0 /* iterator */
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 4
         3: .line 162
            ldc ""
            areturn
         4: .line 164
      StackMap locals:
      StackMap stack:
            aload 0 /* iterator */
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            astore 2 /* first */
        start local 2 // java.lang.Object first
         5: .line 165
            aload 0 /* iterator */
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 7
         6: .line 166
            aload 2 /* first */
            ldc ""
            invokestatic java.util.Objects.toString:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/String;
            areturn
         7: .line 170
      StackMap locals: java.lang.Object
      StackMap stack:
            new java.lang.StringBuilder
            dup
            sipush 256
            invokespecial java.lang.StringBuilder.<init>:(I)V
            astore 3 /* buf */
        start local 3 // java.lang.StringBuilder buf
         8: .line 171
            aload 2 /* first */
            ifnull 15
         9: .line 172
            aload 3 /* buf */
            aload 2 /* first */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            pop
        10: .line 175
            goto 15
        11: .line 176
      StackMap locals: java.lang.StringBuilder
      StackMap stack:
            aload 3 /* buf */
            iload 1 /* separator */
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
        12: .line 177
            aload 0 /* iterator */
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            astore 4 /* obj */
        start local 4 // java.lang.Object obj
        13: .line 178
            aload 4 /* obj */
            ifnull 15
        14: .line 179
            aload 3 /* buf */
            aload 4 /* obj */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            pop
        end local 4 // java.lang.Object obj
        15: .line 175
      StackMap locals:
      StackMap stack:
            aload 0 /* iterator */
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 11
        16: .line 183
            aload 3 /* buf */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 3 // java.lang.StringBuilder buf
        end local 2 // java.lang.Object first
        end local 1 // char separator
        end local 0 // java.util.Iterator iterator
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   17     0   iterator  Ljava/util/Iterator<*>;
            0   17     1  separator  C
            5   17     2      first  Ljava/lang/Object;
            8   17     3        buf  Ljava/lang/StringBuilder;
           13   15     4        obj  Ljava/lang/Object;
    Signature: (Ljava/util/Iterator<*>;C)Ljava/lang/String;
    MethodParameters:
           Name  Flags
      iterator   final
      separator  final

  public static java.lang.String left(java.lang.String, int);
    descriptor: (Ljava/lang/String;I)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // java.lang.String str
        start local 1 // int len
         0: .line 211
            aload 0 /* str */
            ifnonnull 2
         1: .line 212
            aconst_null
            areturn
         2: .line 214
      StackMap locals:
      StackMap stack:
            iload 1 /* len */
            ifge 4
         3: .line 215
            ldc ""
            areturn
         4: .line 217
      StackMap locals:
      StackMap stack:
            aload 0 /* str */
            invokevirtual java.lang.String.length:()I
            iload 1 /* len */
            if_icmpgt 6
         5: .line 218
            aload 0 /* str */
            areturn
         6: .line 220
      StackMap locals:
      StackMap stack:
            aload 0 /* str */
            iconst_0
            iload 1 /* len */
            invokevirtual java.lang.String.substring:(II)Ljava/lang/String;
            areturn
        end local 1 // int len
        end local 0 // java.lang.String str
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0   str  Ljava/lang/String;
            0    7     1   len  I
    MethodParameters:
      Name  Flags
      str   final
      len   final

  public static java.lang.String quote(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.lang.String str
         0: .line 230
            new java.lang.StringBuilder
            dup
            bipush 39
            invokestatic java.lang.String.valueOf:(C)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* str */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            bipush 39
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // java.lang.String str
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0   str  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      str   final

  public static java.lang.String trimToNull(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=2, args_size=1
        start local 0 // java.lang.String str
         0: .line 258
            aload 0 /* str */
            ifnonnull 1
            aconst_null
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 0 /* str */
            invokevirtual java.lang.String.trim:()Ljava/lang/String;
      StackMap locals:
      StackMap stack: java.lang.String
         2: astore 1 /* ts */
        start local 1 // java.lang.String ts
         3: .line 259
            aload 1 /* ts */
            invokestatic org.apache.logging.log4j.util.Strings.isEmpty:(Ljava/lang/CharSequence;)Z
            ifeq 4
            aconst_null
            goto 5
      StackMap locals: java.lang.String
      StackMap stack:
         4: aload 1 /* ts */
      StackMap locals:
      StackMap stack: java.lang.String
         5: areturn
        end local 1 // java.lang.String ts
        end local 0 // java.lang.String str
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0   str  Ljava/lang/String;
            3    6     1    ts  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      str   final

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.logging.log4j.util.Strings this
         0: .line 262
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 264
            return
        end local 0 // org.apache.logging.log4j.util.Strings this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/logging/log4j/util/Strings;

  public static java.lang.String toRootUpperCase(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.String str
         0: .line 273
            aload 0 /* str */
            getstatic java.util.Locale.ROOT:Ljava/util/Locale;
            invokevirtual java.lang.String.toUpperCase:(Ljava/util/Locale;)Ljava/lang/String;
            areturn
        end local 0 // java.lang.String str
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0   str  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      str   final
}
SourceFile: "Strings.java"
/

org.apache.logging.log4j/ log4j-api/ 2.12.0/ org/apache/logging/log4j/util/Strings.class
