io.fabric8.maven.docker.util

Class EnvUtil

java.lang.Object

io.fabric8.maven.docker.util.EnvUtil

public class EnvUtil
extends Object

Utility class for various (loosely) environment related tasks.

Since:

04.04.14

Author:

roland

Field Summary

Fields

Modifier and Type	Field and Description
static String	MAVEN_PROPERTY_REGEXP

Method Summary

Modifier and Type	Method and Description
static List<String>	extractFromPropertiesAsList(String prefix, Properties properties) Extract from given properties a list of string values.
static Map<String,String>	extractFromPropertiesAsMap(String prefix, Properties properties) Extract part of given properties as a map.
static String	extractLargerVersion(String versionA, String versionB) Compare to version strings and return the larger version strings.
static String	extractMavenPropertyName(String propName) Extract from a Maven property which is in the form ${name} the name.
static String	extractUrl(String dockerHost)
static String	findRegistry(String... checkFirst)
static String	getCertPath(String certPath)
static File	prepareAbsoluteOutputDirPath(MojoParameters params, String dir, String path)
static File	prepareAbsoluteSourceDirPath(MojoParameters params, String path)
static List<String[]>	splitOnLastColon(List<String> listToSplit) Splits every element in the given list on the last colon in the name and returns a list with two elements: The left part before the colon and the right part after the colon.
static String[]	splitOnSpaceWithEscape(String toSplit)
static String	stringJoin(List list, String separator) Join a list of objects to a string with a given separator by calling Object.toString() on the elements.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAVEN_PROPERTY_REGEXP

public static final String MAVEN_PROPERTY_REGEXP

See Also:

Constant Field Values

Method Detail

extractUrl

public static String extractUrl(String dockerHost)

getCertPath

public static String getCertPath(String certPath)

extractLargerVersion

public static String extractLargerVersion(String versionA,
                                          String versionB)

Compare to version strings and return the larger version strings. This is used in calculating the minimal required API version for this plugin. Version strings must be comparable as floating numbers. (and parse via Float.parseFloat(String). If either version is null, the other version is returned (which can be null as well)

Parameters:

versionA - first version number

versionB - second version number

Returns:

the larger version number

splitOnLastColon

public static List<String[]> splitOnLastColon(List<String> listToSplit)

Splits every element in the given list on the last colon in the name and returns a list with two elements: The left part before the colon and the right part after the colon. If the string doesnt contain a colon, the value is used for both elements in the returned arrays.

Parameters:

listToSplit - list of strings to split

Returns:

return list of 2-element arrays or an empty list if the given list is empty or null

splitOnSpaceWithEscape

public static String[] splitOnSpaceWithEscape(String toSplit)

stringJoin

public static String stringJoin(List list,
                                String separator)

Join a list of objects to a string with a given separator by calling Object.toString() on the elements.

Parameters:

list - to join

separator - separator to use

Returns:

the joined string.

extractFromPropertiesAsMap

public static Map<String,String> extractFromPropertiesAsMap(String prefix,
                                                            Properties properties)

Extract part of given properties as a map. The given prefix is used to find the properties, the rest of the property name is used as key for the map.

Parameters:

prefix - prefix which specifies the part which should be extracted as map

properties - properties to extract from

Returns:

the extracted map or null if no such map exists

extractFromPropertiesAsList

public static List<String> extractFromPropertiesAsList(String prefix,
                                                       Properties properties)

Extract from given properties a list of string values. The prefix is used to determine the subset of the given properties from which the list should be extracted, the rest is used as a numeric index. If the rest is not numeric, the order is not determined (all those props are appended to the end of the list)

Parameters:

prefix - for selecting the properties from which the list should be extracted

properties - properties from which to extract from

Returns:

parsed list or null if no element with prefixes exists

extractMavenPropertyName

public static String extractMavenPropertyName(String propName)

Extract from a Maven property which is in the form ${name} the name.

Parameters:

propName - property name to extrat

Returns:

the pure name or null if this is not a property name

findRegistry

public static String findRegistry(String... checkFirst)

prepareAbsoluteOutputDirPath

public static File prepareAbsoluteOutputDirPath(MojoParameters params,
                                                String dir,
                                                String path)

prepareAbsoluteSourceDirPath

public static File prepareAbsoluteSourceDirPath(MojoParameters params,
                                                String path)