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Add missing Javadoc for ConnectionConfig #820

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Merged
garydgregory merged 3 commits into from
Apr 12, 2026
+86 −3
Merged

Add missing Javadoc for ConnectionConfig #820

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77670c6
Add missing Javadoc for ConnectionConfig
garydgregory Apr 11, 2026
dbb960a
Adjust text after PR review.
garydgregory Apr 11, 2026
c38b00f
Fix Javadoc typo
garydgregory Apr 12, 2026
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89 changes: 86 additions & 3 deletions httpclient5/src/main/java/org/apache/hc/client5/http/config/ConnectionConfig.java
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,16 @@ public class ConnectionConfig implements Cloneable {

private static final Timeout DEFAULT_CONNECT_TIMEOUT = Timeout.ofMinutes(3);

/**
* The default connection configuration.
* <ul>
* <li>Timeout connectTimeout: 3 minutes</li>
* <li>Timeout socketTimeout: {@code null} (undefined)</li>
* <li>Timeout idleTimeout: {@code null} (undefined)</li>
* <li>TimeValue validateAfterInactivity: {@code null} (undefined)</li>
* <li>TimeValue timeToLive: {@code null} (undefined)</li>
* </ul>
*/
public static final ConnectionConfig DEFAULT = new Builder().build();

private final Timeout connectTimeout;
Expand Down Expand Up @@ -74,34 +84,60 @@ protected ConnectionConfig() {
}

/**
* Gets the default socket timeout value for I/O operations on connections created by this configuration.
* A timeout value of zero is interpreted as an infinite timeout.
*
* @return the default socket timeout value, defaults to null.
* @see Builder#setSocketTimeout(Timeout)
*/
public Timeout getSocketTimeout() {
return socketTimeout;
}

/**
* Gets the timeout until the target endpoint acknowledges accepting the connection request.
* <p>
* Note that isn't the same time as the new connection being fully established. An HTTPS connection cannot be considered fully established until the TLS
* handshake has been successfully completed.
* </p>
* <p>
* A timeout value of zero is interpreted as an infinite timeout.
* </p>
*
* @return the timeout until the target endpoint acknowledges accepting the connection request, defaults to 3 minutes.
* @see Builder#setConnectTimeout(Timeout)
*/
public Timeout getConnectTimeout() {
return connectTimeout;
}

/**
* Gets the maximum period of idleness for a connection.
* <p>
* Implementations can use this value to discard connections that have been idle for too long.
* </p>
*
* @return the maximum period of idleness for a connection, defaults to null.
* @see Builder#setIdleTimeout(Timeout)
*/
public Timeout getIdleTimeout() {
return idleTimeout;
}

/**
* Gets the period of inactivity after which persistent connections must be re-validated.
*
* @return the period of inactivity after which persistent connections must be re-validated, defaults to null.
* @see Builder#setValidateAfterInactivity(TimeValue)
*/
public TimeValue getValidateAfterInactivity() {
return validateAfterInactivity;
}

/**
* Gets the total span of time connections can be kept alive or execute requests.
*
* @return the total span of time connections can be kept alive or execute requests, defaults to null.
* @see Builder#setTimeToLive(TimeValue) (TimeValue)
*/
public TimeValue getTimeToLive() {
Expand All @@ -126,10 +162,21 @@ public String toString() {
return builder.toString();
}

/**
* Creates a new builder for {@link ConnectionConfig}.
*
* @return a new builder for {@link ConnectionConfig}.
*/
public static ConnectionConfig.Builder custom() {
return new Builder();
}

/**
* Creates a new builder for {@link ConnectionConfig} based on an existing instance.
*
* @param config the instance to copy.
* @return a new builder for {@link ConnectionConfig}.
*/
public static ConnectionConfig.Builder copy(final ConnectionConfig config) {
return new Builder()
.setConnectTimeout(config.getConnectTimeout())
Expand All @@ -138,6 +185,9 @@ public static ConnectionConfig.Builder copy(final ConnectionConfig config) {
.setTimeToLive(config.getTimeToLive());
}

/**
* Builder for {@link ConnectionConfig}.
*/
public static class Builder {

private Timeout socketTimeout;
Expand All @@ -152,6 +202,10 @@ public static class Builder {
}

/**
* Sets the default socket timeout value for I/O operations on connections created by this configuration.
*
* @param soTimeout The default socket timeout value for I/O operations.
* @param timeUnit The time unit of the soTimeout parameter.
* @return this instance.
* @see #setSocketTimeout(Timeout)
*/
Expand All @@ -161,7 +215,7 @@ public Builder setSocketTimeout(final int soTimeout, final TimeUnit timeUnit) {
}

/**
* Determines the default socket timeout value for I/O operations on
* Sets the default socket timeout value for I/O operations on
* connections created by this configuration.
* A timeout value of zero is interpreted as an infinite timeout.
* <p>
Expand All @@ -174,6 +228,7 @@ public Builder setSocketTimeout(final int soTimeout, final TimeUnit timeUnit) {
* Default: {@code null} (undefined)
* </p>
*
* @param soTimeout The default socket timeout value for I/O operations.
* @return this instance.
*/
public Builder setSocketTimeout(final Timeout soTimeout) {
Expand All @@ -182,14 +237,15 @@ public Builder setSocketTimeout(final Timeout soTimeout) {
}

/**
* Determines the timeout until a new connection is fully established.
* Sets the timeout until a new connection is fully established.
* <p>
* A timeout value of zero is interpreted as an infinite timeout.
* </p>
* <p>
* Default: 3 minutes
* </p>
*
* @param connectTimeout The timeout until a new connection is fully established.
* @return this instance.
*/
public Builder setConnectTimeout(final Timeout connectTimeout) {
Expand All @@ -198,6 +254,10 @@ public Builder setConnectTimeout(final Timeout connectTimeout) {
}

/**
* Sets the timeout until a new connection is fully established.
*
* @param connectTimeout The timeout until a new connection is fully established.
* @param timeUnit The time unit of the timeout parameter.
* @return this instance.
* @see #setConnectTimeout(Timeout)
*/
Expand All @@ -217,6 +277,7 @@ public Builder setConnectTimeout(final long connectTimeout, final TimeUnit timeU
* Default: {@code null} (undefined)
* </p>
*
* @param idleTimeout The maximum period of idleness for a connection.
* @return this instance.
*
* @since 5.6
Expand All @@ -227,6 +288,13 @@ public Builder setIdleTimeout(final Timeout idleTimeout) {
}

/**
* Sets the maximum period of idleness for a connection.
* <p>
* Connections that are idle for longer than {@code idleTimeout} are no longer eligible for reuse.
* </p>
*
* @param idleTimeout The maximum period of idleness for a connection.
* @param timeUnit
* @return this instance.
* @see #setIdleTimeout(Timeout)
*/
Expand All @@ -236,13 +304,14 @@ public Builder setIdleTimeout(final long idleTimeout, final TimeUnit timeUnit) {
}

/**
* Defines period of inactivity after which persistent connections must
* Sets the period of inactivity after which persistent connections must
* be re-validated prior to being leased to the consumer. Negative values passed
* to this method disable connection validation.
* <p>
* Default: {@code null} (undefined)
* </p>
*
* @param validateAfterInactivity The period of inactivity after which persistent connections must be re-validated.
* @return this instance.
*/
public Builder setValidateAfterInactivity(final TimeValue validateAfterInactivity) {
Expand All @@ -251,6 +320,10 @@ public Builder setValidateAfterInactivity(final TimeValue validateAfterInactivit
}

/**
* Sets the period of inactivity after which persistent connections must be re-validated prior to being leased to the consumer.
*
* @param validateAfterInactivity The period of inactivity after which persistent connections must be re-validated.
* @param timeUnit The time unit of the validateAfterInactivity parameter.
* @return this instance.
* @see #setValidateAfterInactivity(TimeValue)
*/
Expand All @@ -265,6 +338,7 @@ public Builder setValidateAfterInactivity(final long validateAfterInactivity, fi
* Default: {@code null} (undefined)
* </p>
*
* @param timeToLive The total span of time connections can be kept alive or execute requests.
* @return this instance.
*/
public Builder setTimeToLive(final TimeValue timeToLive) {
Expand All @@ -273,6 +347,10 @@ public Builder setTimeToLive(final TimeValue timeToLive) {
}

/**
* Sets the total span of time connections can be kept alive or execute requests.
*
* @param timeToLive The total span of time connections can be kept alive or execute requests.
* @param timeUnit The time unit of the timeToLive parameter.
* @return this instance.
* @see #setTimeToLive(TimeValue)
*/
Expand All @@ -281,6 +359,11 @@ public Builder setTimeToLive(final long timeToLive, final TimeUnit timeUnit) {
return this;
}

/**
* Builds a new {@link ConnectionConfig} instance based on the values provided to the setters methods.
*
* @return a new {@link ConnectionConfig} instance.
*/
public ConnectionConfig build() {
return new ConnectionConfig(
connectTimeout != null ? connectTimeout : DEFAULT_CONNECT_TIMEOUT,
Expand Down
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