org.fcrepo.utilities.install.OptionDefinition Maven / Gradle / Ivy
/* The contents of this file are subject to the license and copyright terms
* detailed in the license directory at the root of the source tree (also
* available online at http://fedora-commons.org/license/).
*/
package org.fcrepo.utilities.install;
import java.io.BufferedReader;
import java.io.File;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Properties;
public class OptionDefinition {
private static Properties _PROPS;
private final String _id;
private final String _label;
private final String _description;
private final String[] _validValues;
private final String _defaultValue;
private final InstallOptions _options;
static {
String path = "org/fcrepo/utilities/install/OptionDefinition.properties";
try {
InputStream in =
OptionDefinition.class.getClassLoader()
.getResourceAsStream(path);
_PROPS = new Properties();
_PROPS.load(in);
} catch (Exception e) {
System.err.println("ERROR: Unable to load required resource: "
+ path);
System.exit(1);
}
}
private OptionDefinition(String id,
String label,
String description,
String[] validValues,
String defaultValue,
InstallOptions options) {
_id = id;
_label = label;
_description = description;
_validValues = validValues;
_defaultValue = defaultValue;
_options = options;
}
/**
* Get the definition of the identified option, or null if no
* such definition exists.
*/
public static OptionDefinition get(String id, InstallOptions options) {
String label = _PROPS.getProperty(id + ".label");
String description = _PROPS.getProperty(id + ".description");
String[] validValues = getArray(id + ".validValues");
String defaultValue = _PROPS.getProperty(id + ".defaultValue");
// If label, description, validValues and defaultValue are all null,
// assume that no definition for the id exists.
//if (label == null && description == null && validValues == null &&
// defaultValue == null) {
// return null;
//}
// Use the environment variable FEDORA_HOME as the default, if defined
if (id.equals(InstallOptions.FEDORA_HOME)) {
String eFH = System.getenv("FEDORA_HOME");
if (eFH != null && eFH.length() != 0) {
defaultValue = eFH;
}
}
// Use CATALINA_HOME as the default, if defined.
if (id.equals(InstallOptions.TOMCAT_HOME)) {
String eCH = System.getenv("CATALINA_HOME");
if (eCH != null && eCH.length() != 0) {
defaultValue = eCH;
} else if (options.getValue(InstallOptions.SERVLET_ENGINE)
.equals(InstallOptions.INCLUDED)) {
defaultValue =
options.getValue(InstallOptions.FEDORA_HOME)
+ File.separator + "tomcat";
}
}
return new OptionDefinition(id,
label,
description,
validValues,
defaultValue,
options);
}
private static String[] getArray(String propName) {
String value = _PROPS.getProperty(propName);
if (value == null) {
return null;
} else {
return value.trim().split(" ");
}
}
public String getId() {
return _id;
}
public String getLabel() {
return _label;
}
public String getDescription() {
return _description;
}
public String[] getValidValues() {
return _validValues;
}
public String getDefaultValue() {
return _defaultValue;
}
public void validateValue(String value) throws OptionValidationException {
validateValue(value, false);
}
public void validateValue(String value, boolean unattended)
throws OptionValidationException {
if (value.length() == 0) {
throw new OptionValidationException("Must specify a value", _id);
}
String[] valids = getValidValues();
if (valids != null) {
boolean isValid = false;
for (String element : valids) {
if (element.equals(value)) {
isValid = true;
}
}
if (!isValid) {
throw new OptionValidationException("Not a valid value: "
+ value, _id);
}
} else {
if (_id.equals(InstallOptions.FEDORA_HOME)) {
File dir = new File(value);
if (dir.isDirectory()) {
if (dir.listFiles().length != 0) {
// check if we're on a Mac
String lcOSName = System.getProperty("os.name").toLowerCase();
boolean MAC_OS_X = lcOSName.startsWith("mac os x");
File dsStore = new File(dir, ".DS_Store");
if (unattended) {
System.out
.println("WARNING: Overwriting existing directory: "
+ dir.getAbsolutePath());
} else if (dir.listFiles().length == 1 && dsStore.exists() && MAC_OS_X) {
// assume we are on Mac OS X and can safely ignore
} else {
System.out.println("WARNING: "
+ dir.getAbsolutePath() + " is not empty.");
System.out
.print("WARNING: Overwrite? (yes or no) [default is no] ==> ");
String confirm = readLine().trim();
if (confirm.length() == 0
|| confirm.equalsIgnoreCase("no")) {
throw new OptionValidationException("Directory is not empty; delete it or choose another",
_id);
}
}
}
} else {
// must be creatable
boolean created = dir.mkdirs();
if (!created) {
throw new OptionValidationException("Unable to create specified directory",
_id);
} else {
dir.delete();
}
}
printEnvWarning("FEDORA_HOME", value);
} else if (_id.equals(InstallOptions.TOMCAT_HOME)) {
printEnvWarning("CATALINA_HOME", value);
File dir = new File(value);
if (dir.exists()
&& _options.getValue(InstallOptions.SERVLET_ENGINE)
.equals(InstallOptions.EXISTING_TOMCAT)) {
// must have webapps subdir
File webapps = new File(dir, "webapps");
if (!webapps.exists()) {
throw new OptionValidationException("Directory exists but does not contain a webapps subdirectory",
_id);
}
} else if (!dir.exists()) {
// must be creatable
boolean created = dir.mkdirs();
if (!created) {
throw new OptionValidationException("Unable to create specified directory",
_id);
} else {
dir.delete();
}
}
} else if (_id.equals(InstallOptions.TOMCAT_SHUTDOWN_PORT)) {
validatePort(value);
} else if (_id.equals(InstallOptions.TOMCAT_HTTP_PORT)) {
validatePort(value);
} else if (_id.equals(InstallOptions.TOMCAT_SSL_PORT)) {
validatePort(value);
} else if (_id.equals(InstallOptions.KEYSTORE_FILE)) {
if (!(value.equals(InstallOptions.INCLUDED) || value
.equals(InstallOptions.DEFAULT))) {
validateExistingFile(value);
}
} else if (_id.startsWith(InstallOptions.DATABASE)
&& _id.endsWith(".driver")) {
if (!value.equals(InstallOptions.INCLUDED)) {
validateExistingFile(value);
}
}
}
}
private String readLine() {
try {
BufferedReader reader =
new BufferedReader(new InputStreamReader(System.in));
return reader.readLine();
} catch (Exception e) {
throw new RuntimeException("Error: Unable to read from STDIN");
}
}
private void validateExistingFile(String val)
throws OptionValidationException {
File f = new File(val);
if (!f.exists()) {
throw new OptionValidationException("No such file", _id);
}
}
private void validatePort(String val) throws OptionValidationException {
try {
int port = Integer.parseInt(val);
if (port < 0 || port > 65535) {
throw new OptionValidationException("Not a valid port number",
_id);
}
} catch (NumberFormatException e) {
throw new OptionValidationException("Not an integer", _id);
}
}
private void printEnvWarning(String envVarName, String value) {
String env = System.getenv(envVarName);
if (env == null || env.length() == 0) {
System.out.println("WARNING: The environment variable, "
+ envVarName + ", is not defined");
System.out.println("WARNING: Remember to define the " + envVarName
+ " environment variable");
System.out.println("WARNING: before starting Fedora.");
} else if (!env.equals(value)) {
System.out.println("WARNING: The environment variable, "
+ envVarName + ", is defined as");
System.out.println("WARNING: " + env);
System.out.println("WARNING: but you entered ");
System.out.println("WARNING: " + value);
System.out
.println("WARNING: Please ensure you have correctly defined "
+ envVarName);
System.out.println("WARNING: before starting Fedora.");
}
}
}
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